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/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
/*
 * Copyright (C) 2008-2009 Collabora Ltd.
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 *
 * Authors: Xavier Claessens <xclaesse@gmail.com>
 */

#include "config.h"

#include <string.h>
#include <glib/gi18n-lib.h>

#include <webkit/webkit.h>
#include <telepathy-glib/dbus.h>
#include <telepathy-glib/util.h>

#include <pango/pango.h>
#include <gdk/gdk.h>

#include <libempathy/empathy-gsettings.h>
#include <libempathy/empathy-time.h>
#include <libempathy/empathy-utils.h>

#include "empathy-theme-adium.h"
#include "empathy-smiley-manager.h"
#include "empathy-ui-utils.h"
#include "empathy-plist.h"
#include "empathy-images.h"
#include "empathy-webkit-utils.h"

#define DEBUG_FLAG EMPATHY_DEBUG_CHAT
#include <libempathy/empathy-debug.h>

#define GET_PRIV(obj) EMPATHY_GET_PRIV (obj, EmpathyThemeAdium)

#define BORING_DPI_DEFAULT 96

/* "Join" consecutive messages with timestamps within five minutes */
#define MESSAGE_JOIN_PERIOD 5*60

typedef struct {
    EmpathyAdiumData     *data;
    EmpathySmileyManager *smiley_manager;
    EmpathyContact       *last_contact;
    gint64                last_timestamp;
    gboolean              last_is_backlog;
    guint                 pages_loading;
    /* Queue of QueuedItem*s containing an EmpathyMessage or string */
    GQueue                message_queue;
    /* Queue of guint32 of pending message id to remove unread
     * marker for when we lose focus. */
    GQueue                acked_messages;
    GtkWidget            *inspector_window;

    GSettings            *gsettings_chat;
    GSettings            *gsettings_desktop;

    gboolean              has_focus;
    gboolean              has_unread_message;
    gboolean              allow_scrolling;
    gchar                *variant;
    gboolean              in_construction;
} EmpathyThemeAdiumPriv;

struct _EmpathyAdiumData {
    gint  ref_count;
    gchar *path;
    gchar *basedir;
    gchar *default_avatar_filename;
    gchar *default_incoming_avatar_filename;
    gchar *default_outgoing_avatar_filename;
    GHashTable *info;
    guint version;
    gboolean custom_template;
    /* gchar* -> gchar* both owned */
    GHashTable *date_format_cache;

    /* HTML bits */
    const gchar *template_html;
    const gchar *content_html;
    const gchar *in_content_html;
    const gchar *in_context_html;
    const gchar *in_nextcontent_html;
    const gchar *in_nextcontext_html;
    const gchar *out_content_html;
    const gchar *out_context_html;
    const gchar *out_nextcontent_html;
    const gchar *out_nextcontext_html;
    const gchar *status_html;

    /* Above html strings are pointers to strings stored in this array.
     * We do this because of fallbacks, some htmls could be pointing the
     * same string. */
    GPtrArray *strings_to_free;
};

static void theme_adium_iface_init (EmpathyChatViewIface *iface);
static gchar * adium_info_dup_path_for_variant (GHashTable *info, const gchar *variant);

enum {
    PROP_0,
    PROP_ADIUM_DATA,
    PROP_VARIANT,
};

G_DEFINE_TYPE_WITH_CODE (EmpathyThemeAdium, empathy_theme_adium,
             WEBKIT_TYPE_WEB_VIEW,
             G_IMPLEMENT_INTERFACE (EMPATHY_TYPE_CHAT_VIEW,
                        theme_adium_iface_init));

enum {
    QUEUED_EVENT,
    QUEUED_MESSAGE,
    QUEUED_EDIT
};

typedef struct {
    guint type;
    EmpathyMessage *msg;
    char *str;
    gboolean should_highlight;
} QueuedItem;

static QueuedItem *
queue_item (GQueue *queue,
        guint type,
        EmpathyMessage *msg,
        const char *str,
        gboolean should_highlight)
{
    QueuedItem *item = g_slice_new0 (QueuedItem);

    item->type = type;
    if (msg != NULL)
        item->msg = g_object_ref (msg);
    item->str = g_strdup (str);
    item->should_highlight = should_highlight;

    g_queue_push_tail (queue, item);

    return item;
}

static void
free_queued_item (QueuedItem *item)
{
    tp_clear_object (&item->msg);
    g_free (item->str);

    g_slice_free (QueuedItem, item);
}

static void
theme_adium_update_enable_webkit_developer_tools (EmpathyThemeAdium *theme)
{
    EmpathyThemeAdiumPriv *priv = GET_PRIV (theme);
    WebKitWebView  *web_view = WEBKIT_WEB_VIEW (theme);
    gboolean        enable_webkit_developer_tools;

    enable_webkit_developer_tools = g_settings_get_boolean (
            priv->gsettings_chat,
            EMPATHY_PREFS_CHAT_WEBKIT_DEVELOPER_TOOLS);

    g_object_set (G_OBJECT (webkit_web_view_get_settings (web_view)),
              "enable-developer-extras",
              enable_webkit_developer_tools,
              NULL);
}

static void
theme_adium_notify_enable_webkit_developer_tools_cb (GSettings   *gsettings,
                             const gchar *key,
                             gpointer     user_data)
{
    EmpathyThemeAdium  *theme = user_data;

    theme_adium_update_enable_webkit_developer_tools (theme);
}

static gboolean
theme_adium_navigation_policy_decision_requested_cb (WebKitWebView             *view,
                             WebKitWebFrame            *web_frame,
                             WebKitNetworkRequest      *request,
                             WebKitWebNavigationAction *action,
                             WebKitWebPolicyDecision   *decision,
                             gpointer                   data)
{
    const gchar *uri;

    /* Only call url_show on clicks */
    if (webkit_web_navigation_action_get_reason (action) !=
        WEBKIT_WEB_NAVIGATION_REASON_LINK_CLICKED) {
        webkit_web_policy_decision_use (decision);
        return TRUE;
    }

    uri = webkit_network_request_get_uri (request);
    empathy_url_show (GTK_WIDGET (view), uri);

    webkit_web_policy_decision_ignore (decision);
    return TRUE;
}

/* Replace each %@ in format with string passed in args */
static gchar *
string_with_format (const gchar *format,
            const gchar *first_string,
            ...)
{
    va_list args;
    const gchar *str;
    GString *result;

    va_start (args, first_string);
    result = g_string_sized_new (strlen (format));
    for (str = first_string; str != NULL; str = va_arg (args, const gchar *)) {
        const gchar *next;

        next = strstr (format, "%@");
        if (next == NULL) {
            break;
        }

        g_string_append_len (result, format, next - format);
        g_string_append (result, str);
        format = next + 2;
    }
    g_string_append (result, format);
    va_end (args);

    return g_string_free (result, FALSE);
}

static void
theme_adium_load_template (EmpathyThemeAdium *theme)
{
    EmpathyThemeAdiumPriv *priv = GET_PRIV (theme);
    gchar                 *basedir_uri;
    gchar                 *variant_path;
    gchar                 *template;

    priv->pages_loading++;
    basedir_uri = g_strconcat ("file://", priv->data->basedir, NULL);
    variant_path = adium_info_dup_path_for_variant (priv->data->info,
        priv->variant);
    template = string_with_format (priv->data->template_html,
        variant_path, NULL);
    webkit_web_view_load_html_string (WEBKIT_WEB_VIEW (theme),
                      template, basedir_uri);
    g_free (basedir_uri);
    g_free (variant_path);
    g_free (template);
}

static gchar *
theme_adium_parse_body (EmpathyThemeAdium *self,
    const gchar *text,
    const gchar *token)
{
    EmpathyThemeAdiumPriv *priv = GET_PRIV (self);
    EmpathyStringParser *parsers;
    GString *string;

    /* Check if we have to parse smileys */
    parsers = empathy_webkit_get_string_parser (
        g_settings_get_boolean (priv->gsettings_chat,
            EMPATHY_PREFS_CHAT_SHOW_SMILEYS));

    /* Parse text and construct string with links and smileys replaced
     * by html tags. Also escape text to make sure html code is
     * displayed verbatim. */
    string = g_string_sized_new (strlen (text));

    /* wrap this in HTML that allows us to find the message for later
     * editing */
    if (!tp_str_empty (token))
        g_string_append_printf (string,
            "<span id=\"message-token-%s\">",
            token);

    empathy_string_parser_substr (text, -1, parsers, string);

    if (!tp_str_empty (token))
        g_string_append (string, "</span>");

    /* Wrap body in order to make tabs and multiple spaces displayed
     * properly. See bug #625745. */
    g_string_prepend (string, "<div style=\"display: inline; "
                           "white-space: pre-wrap\"'>");
    g_string_append (string, "</div>");

    return g_string_free (string, FALSE);
}

static void
escape_and_append_len (GString *string, const gchar *str, gint len)
{
    while (str != NULL && *str != '\0' && len != 0) {
        switch (*str) {
        case '\\':
            /* \ becomes \\ */
            g_string_append (string, "\\\\");
            break;
        case '\"':
            /* " becomes \" */
            g_string_append (string, "\\\"");
            break;
        case '\n':
            /* Remove end of lines */
            break;
        default:
            g_string_append_c (string, *str);
        }

        str++;
        len--;
    }
}

/* If *str starts with match, returns TRUE and move pointer to the end */
static gboolean
theme_adium_match (const gchar **str,
           const gchar *match)
{
    gint len;

    len = strlen (match);
    if (strncmp (*str, match, len) == 0) {
        *str += len - 1;
        return TRUE;
    }

    return FALSE;
}

/* Like theme_adium_match() but also return the X part if match is like %foo{X}% */
static gboolean
theme_adium_match_with_format (const gchar **str,
                   const gchar *match,
                   gchar **format)
{
    const gchar *cur = *str;
    const gchar *end;

    if (!theme_adium_match (&cur, match)) {
        return FALSE;
    }
    cur++;

    end = strstr (cur, "}%");
    if (!end) {
        return FALSE;
    }

    *format = g_strndup (cur , end - cur);
    *str = end + 1;
    return TRUE;
}

/* List of colors used by %senderColor%. Copied from
 * adium/Frameworks/AIUtilities\ Framework/Source/AIColorAdditions.m
 */
static gchar *colors[] = {
    "aqua", "aquamarine", "blue", "blueviolet", "brown", "burlywood", "cadetblue",
    "chartreuse", "chocolate", "coral", "cornflowerblue", "crimson", "cyan",
    "darkblue", "darkcyan", "darkgoldenrod", "darkgreen", "darkgrey", "darkkhaki",
    "darkmagenta", "darkolivegreen", "darkorange", "darkorchid", "darkred",
    "darksalmon", "darkseagreen", "darkslateblue", "darkslategrey",
    "darkturquoise", "darkviolet", "deeppink", "deepskyblue", "dimgrey",
    "dodgerblue", "firebrick", "forestgreen", "fuchsia", "gold", "goldenrod",
    "green", "greenyellow", "grey", "hotpink", "indianred", "indigo", "lawngreen",
    "lightblue", "lightcoral",
    "lightgreen", "lightgrey", "lightpink", "lightsalmon", "lightseagreen",
    "lightskyblue", "lightslategrey", "lightsteelblue", "lime", "limegreen",
    "magenta", "maroon", "mediumaquamarine", "mediumblue", "mediumorchid",
    "mediumpurple", "mediumseagreen", "mediumslateblue", "mediumspringgreen",
    "mediumturquoise", "mediumvioletred", "midnightblue", "navy", "olive",
    "olivedrab", "orange", "orangered", "orchid", "palegreen", "paleturquoise",
    "palevioletred", "peru", "pink", "plum", "powderblue", "purple", "red",
    "rosybrown", "royalblue", "saddlebrown", "salmon", "sandybrown", "seagreen",
    "sienna", "silver", "skyblue", "slateblue", "slategrey", "springgreen",
    "steelblue", "tan", "teal", "thistle", "tomato", "turquoise", "violet",
    "yellowgreen",
};

static const gchar *
nsdate_to_strftime (EmpathyAdiumData *data, const gchar *nsdate)
{
    /* Convert from NSDateFormatter (http://www.stepcase.com/blog/2008/12/02/format-string-for-the-iphone-nsdateformatter/)
     * to strftime supported by g_date_time_format.
     * FIXME: table is incomplete, doc of g_date_time_format has a table of
     *        supported tags.
     * FIXME: g_date_time_format in GLib 2.28 does 0 padding by default, but
     *        in 2.29.x we have to explictely request padding with %0x */
    static const gchar *convert_table[] = {
        "a", "%p", // AM/PM
        "A", NULL, // 0~86399999 (Millisecond of Day)

        "cccc", "%A", // Sunday/Monday/Tuesday/Wednesday/Thursday/Friday/Saturday
        "ccc", "%a", // Sun/Mon/Tue/Wed/Thu/Fri/Sat
        "cc", "%u", // 1~7 (Day of Week)
        "c", "%u", // 1~7 (Day of Week)

        "dd", "%d", // 1~31 (0 padded Day of Month)
        "d", "%d", // 1~31 (0 padded Day of Month)
        "D", "%j", // 1~366 (0 padded Day of Year)

        "e", "%u", // 1~7 (0 padded Day of Week)
        "EEEE", "%A", // Sunday/Monday/Tuesday/Wednesday/Thursday/Friday/Saturday
        "EEE", "%a", // Sun/Mon/Tue/Wed/Thu/Fri/Sat
        "EE", "%a", // Sun/Mon/Tue/Wed/Thu/Fri/Sat
        "E", "%a", // Sun/Mon/Tue/Wed/Thu/Fri/Sat

        "F", NULL, // 1~5 (0 padded Week of Month, first day of week = Monday)

        "g", NULL, // Julian Day Number (number of days since 4713 BC January 1)
        "GGGG", NULL, // Before Christ/Anno Domini
        "GGG", NULL, // BC/AD (Era Designator Abbreviated)
        "GG", NULL, // BC/AD (Era Designator Abbreviated)
        "G", NULL, // BC/AD (Era Designator Abbreviated)

        "h", "%I", // 1~12 (0 padded Hour (12hr))
        "H", "%H", // 0~23 (0 padded Hour (24hr))

        "k", NULL, // 1~24 (0 padded Hour (24hr)
        "K", NULL, // 0~11 (0 padded Hour (12hr))

        "LLLL", "%B", // January/February/March/April/May/June/July/August/September/October/November/December
        "LLL", "%b", // Jan/Feb/Mar/Apr/May/Jun/Jul/Aug/Sep/Oct/Nov/Dec
        "LL", "%m", // 1~12 (0 padded Month)
        "L", "%m", // 1~12 (0 padded Month)

        "m", "%M", // 0~59 (0 padded Minute)
        "MMMM", "%B", // January/February/March/April/May/June/July/August/September/October/November/December
        "MMM", "%b", // Jan/Feb/Mar/Apr/May/Jun/Jul/Aug/Sep/Oct/Nov/Dec
        "MM", "%m", // 1~12 (0 padded Month)
        "M", "%m", // 1~12 (0 padded Month)

        "qqqq", NULL, // 1st quarter/2nd quarter/3rd quarter/4th quarter
        "qqq", NULL, // Q1/Q2/Q3/Q4
        "qq", NULL, // 1~4 (0 padded Quarter)
        "q", NULL, // 1~4 (0 padded Quarter)
        "QQQQ", NULL, // 1st quarter/2nd quarter/3rd quarter/4th quarter
        "QQQ", NULL, // Q1/Q2/Q3/Q4
        "QQ", NULL, // 1~4 (0 padded Quarter)
        "Q", NULL, // 1~4 (0 padded Quarter)

        "s", "%S", // 0~59 (0 padded Second)
        "S", NULL, // (rounded Sub-Second)

        "u", "%Y", // (0 padded Year)

        "vvvv", "%Z", // (General GMT Timezone Name)
        "vvv", "%Z", // (General GMT Timezone Abbreviation)
        "vv", "%Z", // (General GMT Timezone Abbreviation)
        "v", "%Z", // (General GMT Timezone Abbreviation)

        "w", "%W", // 1~53 (0 padded Week of Year, 1st day of week = Sunday, NB, 1st week of year starts from the last Sunday of last year)
        "W", NULL, // 1~5 (0 padded Week of Month, 1st day of week = Sunday)

        "yyyy", "%Y", // (Full Year)
        "yyy", "%y", // (2 Digits Year)
        "yy", "%y", // (2 Digits Year)
        "y", "%Y", // (Full Year)
        "YYYY", NULL, // (Full Year, starting from the Sunday of the 1st week of year)
        "YYY", NULL, // (2 Digits Year, starting from the Sunday of the 1st week of year)
        "YY", NULL, // (2 Digits Year, starting from the Sunday of the 1st week of year)
        "Y", NULL, // (Full Year, starting from the Sunday of the 1st week of year)

        "zzzz", NULL, // (Specific GMT Timezone Name)
        "zzz", NULL, // (Specific GMT Timezone Abbreviation)
        "zz", NULL, // (Specific GMT Timezone Abbreviation)
        "z", NULL, // (Specific GMT Timezone Abbreviation)
        "Z", "%z", // +0000 (RFC 822 Timezone)
    };
    const gchar *str;
    GString *string;
    guint i, j;

    if (nsdate == NULL) {
        return NULL;
    }

    str = g_hash_table_lookup (data->date_format_cache, nsdate);
    if (str != NULL) {
        return str;
    }

    /* Copy nsdate into string, replacing occurences of NSDateFormatter tags
     * by corresponding strftime tag. */
    string = g_string_sized_new (strlen (nsdate));
    for (i = 0; nsdate[i] != '\0'; i++) {
        gboolean found = FALSE;

        /* even indexes are NSDateFormatter tag, odd indexes are the
         * corresponding strftime tag */
        for (j = 0; j < G_N_ELEMENTS (convert_table); j += 2) {
            if (g_str_has_prefix (nsdate + i, convert_table[j])) {
                found = TRUE;
                break;
            }
        }
        if (found) {
            /* If we don't have a replacement, just ignore that tag */
            if (convert_table[j + 1] != NULL) {
                g_string_append (string, convert_table[j + 1]);
            }
            i += strlen (convert_table[j]) - 1;
        } else {
            g_string_append_c (string, nsdate[i]);
        }
    }

    DEBUG ("Date format converted '%s' → '%s'", nsdate, string->str);

    /* The cache takes ownership of string->str */
    g_hash_table_insert (data->date_format_cache, g_strdup (nsdate), string->str);
    return g_string_free (string, FALSE);
}


static void
theme_adium_append_html (EmpathyThemeAdium *theme,
             const gchar       *func,
             const gchar       *html,
                 const gchar       *message,
                 const gchar       *avatar_filename,
                 const gchar       *name,
                 const gchar       *contact_id,
                 const gchar       *service_name,
                 const gchar       *message_classes,
                 gint64             timestamp,
                 gboolean           is_backlog,
                 gboolean           outgoing)
{
    EmpathyThemeAdiumPriv *priv = GET_PRIV (theme);
    GString     *string;
    const gchar *cur = NULL;
    gchar       *script;

    /* Make some search-and-replace in the html code */
    string = g_string_sized_new (strlen (html) + strlen (message));
    g_string_append_printf (string, "%s(\"", func);
    for (cur = html; *cur != '\0'; cur++) {
        const gchar *replace = NULL;
        gchar       *dup_replace = NULL;
        gchar       *format = NULL;

        /* Those are all well known keywords that needs replacement in
         * html files. Please keep them in the same order than the adium
         * spec. See http://trac.adium.im/wiki/CreatingMessageStyles */
        if (theme_adium_match (&cur, "%userIconPath%")) {
            replace = avatar_filename;
        } else if (theme_adium_match (&cur, "%senderScreenName%")) {
            replace = contact_id;
        } else if (theme_adium_match (&cur, "%sender%")) {
            replace = name;
        } else if (theme_adium_match (&cur, "%senderColor%")) {
            /* A color derived from the user's name.
             * FIXME: If a colon separated list of HTML colors is at
             * Incoming/SenderColors.txt it will be used instead of
             * the default colors.
             */

            /* Ensure we always use the same color when sending messages
             * (bgo #658821) */
            if (outgoing) {
                replace = "inherit";
            } else if (contact_id != NULL) {
                guint hash = g_str_hash (contact_id);
                replace = colors[hash % G_N_ELEMENTS (colors)];
            }
        } else if (theme_adium_match (&cur, "%senderStatusIcon%")) {
            /* FIXME: The path to the status icon of the sender
             * (available, away, etc...)
             */
        } else if (theme_adium_match (&cur, "%messageDirection%")) {
            /* FIXME: The text direction of the message
             * (either rtl or ltr)
             */
        } else if (theme_adium_match (&cur, "%senderDisplayName%")) {
            /* FIXME: The serverside (remotely set) name of the
             * sender, such as an MSN display name.
             *
             *  We don't have access to that yet so we use
             * local alias instead.
             */
            replace = name;
        } else if (theme_adium_match_with_format (&cur, "%textbackgroundcolor{", &format)) {
            /* FIXME: This keyword is used to represent the
             * highlight background color. "X" is the opacity of the
             * background, ranges from 0 to 1 and can be any decimal
             * between.
             */
        } else if (theme_adium_match (&cur, "%message%")) {
            replace = message;
        } else if (theme_adium_match (&cur, "%time%") ||
               theme_adium_match_with_format (&cur, "%time{", &format)) {
            const gchar *strftime_format;

            strftime_format = nsdate_to_strftime (priv->data, format);
            if (is_backlog) {
                dup_replace = empathy_time_to_string_local (timestamp,
                    strftime_format ? strftime_format :
                    EMPATHY_TIME_DATE_FORMAT_DISPLAY_SHORT);
            } else {
                dup_replace = empathy_time_to_string_local (timestamp,
                    strftime_format ? strftime_format :
                    EMPATHY_TIME_FORMAT_DISPLAY_SHORT);
            }
            replace = dup_replace;
        } else if (theme_adium_match (&cur, "%shortTime%")) {
            dup_replace = empathy_time_to_string_local (timestamp,
                EMPATHY_TIME_FORMAT_DISPLAY_SHORT);
            replace = dup_replace;
        } else if (theme_adium_match (&cur, "%service%")) {
            replace = service_name;
        } else if (theme_adium_match (&cur, "%variant%")) {
            /* FIXME: The name of the active message style variant,
             * with all spaces replaced with an underscore.
             * A variant named "Alternating Messages - Blue Red"
             * will become "Alternating_Messages_-_Blue_Red".
             */
        } else if (theme_adium_match (&cur, "%userIcons%")) {
            /* FIXME: mus t be "hideIcons" if use preference is set
             * to hide avatars */
            replace = "showIcons";
        } else if (theme_adium_match (&cur, "%messageClasses%")) {
            replace = message_classes;
        } else if (theme_adium_match (&cur, "%status%")) {
            /* FIXME: A description of the status event. This is
             * neither in the user's local language nor expected to
             * be displayed; it may be useful to use a different div
             * class to present different types of status messages.
             * The following is a list of some of the more important
             * status messages; your message style should be able to
             * handle being shown a status message not in this list,
             * as even at present the list is incomplete and is
             * certain to become out of date in the future:
             *  online
             *  offline
             *  away
             *  away_message
             *  return_away
             *  idle
             *  return_idle
             *  date_separator
             *  contact_joined (group chats)
             *  contact_left
             *  error
             *  timed_out
             *  encryption (all OTR messages use this status)
             *  purple (all IRC topic and join/part messages use this status)
             *  fileTransferStarted
             *  fileTransferCompleted
             */
        } else {
            escape_and_append_len (string, cur, 1);
            continue;
        }

        /* Here we have a replacement to make */
        escape_and_append_len (string, replace, -1);

        g_free (dup_replace);
        g_free (format);
    }
    g_string_append (string, "\")");

    script = g_string_free (string, FALSE);
    webkit_web_view_execute_script (WEBKIT_WEB_VIEW (theme), script);
    g_free (script);
}

static void
theme_adium_append_event_escaped (EmpathyChatView *view,
                  const gchar     *escaped)
{
    EmpathyThemeAdium     *theme = EMPATHY_THEME_ADIUM (view);
    EmpathyThemeAdiumPriv *priv = GET_PRIV (theme);

    theme_adium_append_html (theme, "appendMessage",
                 priv->data->status_html, escaped, NULL, NULL, NULL,
                 NULL, "event",
                 empathy_time_get_current (), FALSE, FALSE);

    /* There is no last contact */
    if (priv->last_contact) {
        g_object_unref (priv->last_contact);
        priv->last_contact = NULL;
    }
}

static void
theme_adium_remove_focus_marks (EmpathyThemeAdium *theme,
    WebKitDOMNodeList *nodes)
{
    guint i;

    /* Remove focus and firstFocus class */
    for (i = 0; i < webkit_dom_node_list_get_length (nodes); i++) {
        WebKitDOMNode *node = webkit_dom_node_list_item (nodes, i);
        WebKitDOMHTMLElement *element = WEBKIT_DOM_HTML_ELEMENT (node);
        gchar *class_name;
        gchar **classes, **iter;
        GString *new_class_name;
        gboolean first = TRUE;

        if (element == NULL) {
            continue;
        }

        class_name = webkit_dom_html_element_get_class_name (element);
        classes = g_strsplit (class_name, " ", -1);
        new_class_name = g_string_sized_new (strlen (class_name));
        for (iter = classes; *iter != NULL; iter++) {
            if (tp_strdiff (*iter, "focus") &&
                tp_strdiff (*iter, "firstFocus")) {
                if (!first) {
                    g_string_append_c (new_class_name, ' ');
                }
                g_string_append (new_class_name, *iter);
                first = FALSE;
            }
        }

        webkit_dom_html_element_set_class_name (element, new_class_name->str);

        g_free (class_name);
        g_strfreev (classes);
        g_string_free (new_class_name, TRUE);
    }
}

static void
theme_adium_remove_all_focus_marks (EmpathyThemeAdium *theme)
{
    EmpathyThemeAdiumPriv *priv = GET_PRIV (theme);
    WebKitDOMDocument *dom;
    WebKitDOMNodeList *nodes;
    GError *error = NULL;

    if (!priv->has_unread_message)
        return;

    priv->has_unread_message = FALSE;

    dom = webkit_web_view_get_dom_document (WEBKIT_WEB_VIEW (theme));
    if (dom == NULL) {
        return;
    }

    /* Get all nodes with focus class */
    nodes = webkit_dom_document_query_selector_all (dom, ".focus", &error);
    if (nodes == NULL) {
        DEBUG ("Error getting focus nodes: %s",
            error ? error->message : "No error");
        g_clear_error (&error);
        return;
    }

    theme_adium_remove_focus_marks (theme, nodes);
}

static void
theme_adium_append_message (EmpathyChatView *view,
                EmpathyMessage  *msg,
                gboolean         should_highlight)
{
    EmpathyThemeAdium     *theme = EMPATHY_THEME_ADIUM (view);
    EmpathyThemeAdiumPriv *priv = GET_PRIV (theme);
    EmpathyContact        *sender;
    TpMessage             *tp_msg;
    TpAccount             *account;
    gchar                 *body_escaped, *name_escaped;
    const gchar           *name;
    const gchar           *contact_id;
    EmpathyAvatar         *avatar;
    const gchar           *avatar_filename = NULL;
    gint64                 timestamp;
    const gchar           *html = NULL;
    const gchar           *func;
    const gchar           *service_name;
    GString               *message_classes = NULL;
    gboolean               is_backlog;
    gboolean               consecutive;
    gboolean               action;

    if (priv->pages_loading != 0) {
        queue_item (&priv->message_queue, QUEUED_MESSAGE, msg, NULL, should_highlight);
        return;
    }

    /* Get information */
    sender = empathy_message_get_sender (msg);
    account = empathy_contact_get_account (sender);
    service_name = empathy_protocol_name_to_display_name
        (tp_account_get_protocol (account));
    if (service_name == NULL)
        service_name = tp_account_get_protocol (account);
    timestamp = empathy_message_get_timestamp (msg);
    body_escaped = theme_adium_parse_body (theme,
        empathy_message_get_body (msg),
        empathy_message_get_token (msg));
    name = empathy_contact_get_logged_alias (sender);
    contact_id = empathy_contact_get_id (sender);
    action = (empathy_message_get_tptype (msg) == TP_CHANNEL_TEXT_MESSAGE_TYPE_ACTION);

    name_escaped = g_markup_escape_text (name, -1);

    /* If this is a /me probably */
    if (action) {
        gchar *str;

        if (priv->data->version >= 4 || !priv->data->custom_template) {
            str = g_strdup_printf ("<span class='actionMessageUserName'>%s</span>"
                           "<span class='actionMessageBody'>%s</span>",
                           name_escaped, body_escaped);
        } else {
            str = g_strdup_printf ("*%s*", body_escaped);
        }
        g_free (body_escaped);
        body_escaped = str;
    }

    /* Get the avatar filename, or a fallback */
    avatar = empathy_contact_get_avatar (sender);
    if (avatar) {
        avatar_filename = avatar->filename;
    }
    if (!avatar_filename) {
        if (empathy_contact_is_user (sender)) {
            avatar_filename = priv->data->default_outgoing_avatar_filename;
        } else {
            avatar_filename = priv->data->default_incoming_avatar_filename;
        }
        if (!avatar_filename) {
            if (!priv->data->default_avatar_filename) {
                priv->data->default_avatar_filename =
                    empathy_filename_from_icon_name (EMPATHY_IMAGE_AVATAR_DEFAULT,
                                     GTK_ICON_SIZE_DIALOG);
            }
            avatar_filename = priv->data->default_avatar_filename;
        }
    }

    /* We want to join this message with the last one if
     * - senders are the same contact,
     * - last message was recieved recently,
     * - last message and this message both are/aren't backlog, and
     * - DisableCombineConsecutive is not set in theme's settings */
    is_backlog = empathy_message_is_backlog (msg);
    consecutive = empathy_contact_equal (priv->last_contact, sender) &&
        (timestamp - priv->last_timestamp < MESSAGE_JOIN_PERIOD) &&
        (is_backlog == priv->last_is_backlog) &&
        !tp_asv_get_boolean (priv->data->info,
                     "DisableCombineConsecutive", NULL);

    /* Define message classes */
    message_classes = g_string_new ("message");
    if (!priv->has_focus && !is_backlog) {
        if (!priv->has_unread_message) {
            g_string_append (message_classes, " firstFocus");
            priv->has_unread_message = TRUE;
        }
        g_string_append (message_classes, " focus");
    }
    if (is_backlog) {
        g_string_append (message_classes, " history");
    }
    if (consecutive) {
        g_string_append (message_classes, " consecutive");
    }
    if (empathy_contact_is_user (sender)) {
        g_string_append (message_classes, " outgoing");
    } else {
        g_string_append (message_classes, " incoming");
    }
    if (should_highlight) {
        g_string_append (message_classes, " mention");
    }
    if (empathy_message_get_tptype (msg) == TP_CHANNEL_TEXT_MESSAGE_TYPE_AUTO_REPLY) {
        g_string_append (message_classes, " autoreply");
    }
    if (action) {
        g_string_append (message_classes, " action");
    }
    /* FIXME: other classes:
     * status - the message is a status change
     * event - the message is a notification of something happening
     *         (for example, encryption being turned on)
     * %status% - See %status% in theme_adium_append_html ()
     */

    /* This is slightly a hack, but it's the only way to add
     * arbitrary data to messages in the HTML. We add another
     * class called "x-empathy-message-id-*" to the message. This
     * way, we can remove the unread marker for this specific
     * message later. */
    tp_msg = empathy_message_get_tp_message (msg);
    if (tp_msg != NULL) {
        guint32 id;
        gboolean valid;

        id = tp_message_get_pending_message_id (tp_msg, &valid);
        if (valid) {
            g_string_append_printf (message_classes,
                " x-empathy-message-id-%u", id);
        }
    }

    /* Define javascript function to use */
    if (consecutive) {
        func = priv->allow_scrolling ? "appendNextMessage" : "appendNextMessageNoScroll";
    } else {
        func = priv->allow_scrolling ? "appendMessage" : "appendMessageNoScroll";
    }

    if (empathy_contact_is_user (sender)) {
        /* out */
        if (is_backlog) {
            /* context */
            html = consecutive ? priv->data->out_nextcontext_html : priv->data->out_context_html;
        } else {
            /* content */
            html = consecutive ? priv->data->out_nextcontent_html : priv->data->out_content_html;
        }

        /* remove all the unread marks when we are sending a message */
        theme_adium_remove_all_focus_marks (theme);
    } else {
        /* in */
        if (is_backlog) {
            /* context */
            html = consecutive ? priv->data->in_nextcontext_html : priv->data->in_context_html;
        } else {
            /* content */
            html = consecutive ? priv->data->in_nextcontent_html : priv->data->in_content_html;
        }
    }

    theme_adium_append_html (theme, func, html, body_escaped,
                 avatar_filename, name_escaped, contact_id,
                 service_name, message_classes->str,
                 timestamp, is_backlog, empathy_contact_is_user (sender));

    /* Keep the sender of the last displayed message */
    if (priv->last_contact) {
        g_object_unref (priv->last_contact);
    }
    priv->last_contact = g_object_ref (sender);
    priv->last_timestamp = timestamp;
    priv->last_is_backlog = is_backlog;

    g_free (body_escaped);
    g_free (name_escaped);
    g_string_free (message_classes, TRUE);
}

static void
theme_adium_append_event (EmpathyChatView *view,
              const gchar     *str)
{
    EmpathyThemeAdiumPriv *priv = GET_PRIV (view);
    gchar *str_escaped;

    if (priv->pages_loading != 0) {
        queue_item (&priv->message_queue, QUEUED_EVENT, NULL, str, FALSE);
        return;
    }

    str_escaped = g_markup_escape_text (str, -1);
    theme_adium_append_event_escaped (view, str_escaped);
    g_free (str_escaped);
}

static void
theme_adium_append_event_markup (EmpathyChatView *view,
                 const gchar     *markup_text,
                 const gchar     *fallback_text)
{
    theme_adium_append_event_escaped (view, markup_text);
}

static void
theme_adium_edit_message (EmpathyChatView *view,
              EmpathyMessage  *message)
{
    EmpathyThemeAdiumPriv *priv = GET_PRIV (view);
    WebKitDOMDocument *doc;
    WebKitDOMElement *span;
    gchar *id, *parsed_body;
    gchar *tooltip, *timestamp;
    GtkIconInfo *icon_info;
    GError *error = NULL;

    if (priv->pages_loading != 0) {
        queue_item (&priv->message_queue, QUEUED_EDIT, message, NULL, FALSE);
        return;
    }

    id = g_strdup_printf ("message-token-%s",
        empathy_message_get_supersedes (message));
    /* we don't pass a token here, because doing so will return another
     * <span> element, and we don't want nested <span> elements */
    parsed_body = theme_adium_parse_body (EMPATHY_THEME_ADIUM (view),
        empathy_message_get_body (message), NULL);

    /* find the element */
    doc = webkit_web_view_get_dom_document (WEBKIT_WEB_VIEW (view));
    span = webkit_dom_document_get_element_by_id (doc, id);

    if (span == NULL) {
        DEBUG ("Failed to find id '%s'", id);
        goto except;
    }

    if (!WEBKIT_DOM_IS_HTML_ELEMENT (span)) {
        DEBUG ("Not a HTML element");
        goto except;
    }

    /* update the HTML */
    webkit_dom_html_element_set_inner_html (WEBKIT_DOM_HTML_ELEMENT (span),
        parsed_body, &error);

    if (error != NULL) {
        DEBUG ("Error setting new inner-HTML: %s", error->message);
        g_error_free (error);
        goto except;
    }

    /* set a tooltip */
    timestamp = empathy_time_to_string_local (
        empathy_message_get_timestamp (message),
        "%H:%M:%S");
    tooltip = g_strdup_printf (_("Message edited at %s"), timestamp);

    webkit_dom_html_element_set_title (WEBKIT_DOM_HTML_ELEMENT (span),
        tooltip);

    g_free (tooltip);
    g_free (timestamp);

    /* mark this message as edited */
    icon_info = gtk_icon_theme_lookup_icon (gtk_icon_theme_get_default (),
        EMPATHY_IMAGE_EDIT_MESSAGE, 16, 0);

    if (icon_info != NULL) {
        /* set the icon as a background image using CSS
         * FIXME: the icon won't update in response to theme changes */
        gchar *style = g_strdup_printf (
            "background-image:url('%s');"
            "background-repeat:no-repeat;"
            "background-position:left center;"
            "padding-left:19px;", /* 16px icon + 3px padding */
            gtk_icon_info_get_filename (icon_info));

        webkit_dom_element_set_attribute (span, "style", style, &error);

        if (error != NULL) {
            DEBUG ("Error setting element style: %s",
                error->message);
            g_clear_error (&error);
            /* not fatal */
        }

        g_free (style);
        gtk_icon_info_free (icon_info);
    }

    goto finally;

except:
    DEBUG ("Could not find message to edit with: %s",
        empathy_message_get_body (message));

finally:
    g_free (id);
    g_free (parsed_body);
}

static void
theme_adium_scroll (EmpathyChatView *view,
            gboolean         allow_scrolling)
{
    EmpathyThemeAdiumPriv *priv = GET_PRIV (view);

    priv->allow_scrolling = allow_scrolling;
    if (allow_scrolling) {
        empathy_chat_view_scroll_down (view);
    }
}

static void
theme_adium_scroll_down (EmpathyChatView *view)
{
    webkit_web_view_execute_script (WEBKIT_WEB_VIEW (view), "alignChat(true);");
}

static gboolean
theme_adium_get_has_selection (EmpathyChatView *view)
{
    return webkit_web_view_has_selection (WEBKIT_WEB_VIEW (view));
}

static void
theme_adium_clear (EmpathyChatView *view)
{
    EmpathyThemeAdiumPriv *priv = GET_PRIV (view);

    theme_adium_load_template (EMPATHY_THEME_ADIUM (view));

    /* Clear last contact to avoid trying to add a 'joined'
     * message when we don't have an insertion point. */
    if (priv->last_contact) {
        g_object_unref (priv->last_contact);
        priv->last_contact = NULL;
    }
}

static gboolean
theme_adium_find_previous (EmpathyChatView *view,
               const gchar     *search_criteria,
               gboolean         new_search,
               gboolean         match_case)
{
    /* FIXME: Doesn't respect new_search */
    return webkit_web_view_search_text (WEBKIT_WEB_VIEW (view),
                        search_criteria, match_case,
                        FALSE, TRUE);
}

static gboolean
theme_adium_find_next (EmpathyChatView *view,
               const gchar     *search_criteria,
               gboolean         new_search,
               gboolean         match_case)
{
    /* FIXME: Doesn't respect new_search */
    return webkit_web_view_search_text (WEBKIT_WEB_VIEW (view),
                        search_criteria, match_case,
                        TRUE, TRUE);
}

static void
theme_adium_find_abilities (EmpathyChatView *view,
                const gchar    *search_criteria,
                            gboolean        match_case,
                gboolean       *can_do_previous,
                gboolean       *can_do_next)
{
    /* FIXME: Does webkit provide an API for that? We have wrap=true in
     * find_next and find_previous to work around this problem. */
    if (can_do_previous)
        *can_do_previous = TRUE;
    if (can_do_next)
        *can_do_next = TRUE;
}

static void
theme_adium_highlight (EmpathyChatView *view,
               const gchar     *text,
               gboolean         match_case)
{
    webkit_web_view_unmark_text_matches (WEBKIT_WEB_VIEW (view));
    webkit_web_view_mark_text_matches (WEBKIT_WEB_VIEW (view),
                       text, match_case, 0);
    webkit_web_view_set_highlight_text_matches (WEBKIT_WEB_VIEW (view),
                            TRUE);
}

static void
theme_adium_copy_clipboard (EmpathyChatView *view)
{
    webkit_web_view_copy_clipboard (WEBKIT_WEB_VIEW (view));
}

static void
theme_adium_remove_mark_from_message (EmpathyThemeAdium *self,
                      guint32 id)
{
    WebKitDOMDocument *dom;
    WebKitDOMNodeList *nodes;
    gchar *class;
    GError *error = NULL;

    dom = webkit_web_view_get_dom_document (WEBKIT_WEB_VIEW (self));
    if (dom == NULL) {
        return;
    }

    class = g_strdup_printf (".x-empathy-message-id-%u", id);

    /* Get all nodes with focus class */
    nodes = webkit_dom_document_query_selector_all (dom, class, &error);
    g_free (class);

    if (nodes == NULL) {
        DEBUG ("Error getting focus nodes: %s",
            error ? error->message : "No error");
        g_clear_error (&error);
        return;
    }

    theme_adium_remove_focus_marks (self, nodes);
}

static void
theme_adium_remove_acked_message_unread_mark_foreach (gpointer data,
                              gpointer user_data)
{
    EmpathyThemeAdium *self = user_data;
    guint32 id = GPOINTER_TO_UINT (data);

    theme_adium_remove_mark_from_message (self, id);
}

static void
theme_adium_focus_toggled (EmpathyChatView *view,
               gboolean         has_focus)
{
    EmpathyThemeAdiumPriv *priv = GET_PRIV (view);

    priv->has_focus = has_focus;
    if (!priv->has_focus) {
        /* We've lost focus, so let's make sure all the acked
         * messages have lost their unread marker. */
        g_queue_foreach (&priv->acked_messages,
                 theme_adium_remove_acked_message_unread_mark_foreach,
                 view);
        g_queue_clear (&priv->acked_messages);

        priv->has_unread_message = FALSE;
    }
}

static void
theme_adium_message_acknowledged (EmpathyChatView *view,
                  EmpathyMessage  *message)
{
    EmpathyThemeAdium *self = (EmpathyThemeAdium *) view;
    EmpathyThemeAdiumPriv *priv = GET_PRIV (view);
    TpMessage *tp_msg;
    guint32 id;
    gboolean valid;

    tp_msg = empathy_message_get_tp_message (message);

    if (tp_msg == NULL) {
        return;
    }

    id = tp_message_get_pending_message_id (tp_msg, &valid);
    if (!valid) {
        g_warning ("Acknoledged message doesn't have a pending ID");
        return;
    }

    /* We only want to actually remove the unread marker if the
     * view doesn't have focus. If we did it all the time we would
     * never see the unread markers, ever! So, we'll queue these
     * up, and when we lose focus, we'll remove the markers. */
    if (priv->has_focus) {
        g_queue_push_tail (&priv->acked_messages,
                   GUINT_TO_POINTER (id));
        return;
    }

    theme_adium_remove_mark_from_message (self, id);
}

static gboolean
theme_adium_button_press_event (GtkWidget *widget, GdkEventButton *event)
{
    if (event->button == 3) {
        gboolean developer_tools_enabled;

        g_object_get (G_OBJECT (webkit_web_view_get_settings (WEBKIT_WEB_VIEW (widget))),
                  "enable-developer-extras", &developer_tools_enabled, NULL);

        /* We currently have no way to add an inspector menu
         * item ourselves, so we disable our customized menu
         * if the developer extras are enabled. */
        if (!developer_tools_enabled) {
            empathy_webkit_context_menu_for_event (
                WEBKIT_WEB_VIEW (widget), event,
                EMPATHY_WEBKIT_MENU_CLEAR);
            return TRUE;
        }
    }

    return GTK_WIDGET_CLASS (empathy_theme_adium_parent_class)->button_press_event (widget, event);
}

static void
theme_adium_iface_init (EmpathyChatViewIface *iface)
{
    iface->append_message = theme_adium_append_message;
    iface->append_event = theme_adium_append_event;
    iface->append_event_markup = theme_adium_append_event_markup;
    iface->edit_message = theme_adium_edit_message;
    iface->scroll = theme_adium_scroll;
    iface->scroll_down = theme_adium_scroll_down;
    iface->get_has_selection = theme_adium_get_has_selection;
    iface->clear = theme_adium_clear;
    iface->find_previous = theme_adium_find_previous;
    iface->find_next = theme_adium_find_next;
    iface->find_abilities = theme_adium_find_abilities;
    iface->highlight = theme_adium_highlight;
    iface->copy_clipboard = theme_adium_copy_clipboard;
    iface->focus_toggled = theme_adium_focus_toggled;
    iface->message_acknowledged = theme_adium_message_acknowledged;
}

static void
theme_adium_load_finished_cb (WebKitWebView  *view,
                  WebKitWebFrame *frame,
                  gpointer        user_data)
{
    EmpathyThemeAdiumPriv *priv = GET_PRIV (view);
    EmpathyChatView       *chat_view = EMPATHY_CHAT_VIEW (view);
    GList                 *l;

    DEBUG ("Page loaded");
    priv->pages_loading--;

    if (priv->pages_loading != 0)
        return;

    /* Display queued messages */
    for (l = priv->message_queue.head; l != NULL; l = l->next) {
        QueuedItem *item = l->data;

        switch (item->type)
        {
            case QUEUED_MESSAGE:
                theme_adium_append_message (chat_view, item->msg,
                    item->should_highlight);
                break;

            case QUEUED_EDIT:
                theme_adium_edit_message (chat_view, item->msg);
                break;

            case QUEUED_EVENT:
                theme_adium_append_event (chat_view, item->str);
                break;
        }

        free_queued_item (item);
    }

    g_queue_clear (&priv->message_queue);
}

static void
theme_adium_finalize (GObject *object)
{
    EmpathyThemeAdiumPriv *priv = GET_PRIV (object);

    empathy_adium_data_unref (priv->data);

    g_object_unref (priv->gsettings_chat);
    g_object_unref (priv->gsettings_desktop);

    G_OBJECT_CLASS (empathy_theme_adium_parent_class)->finalize (object);
}

static void
theme_adium_dispose (GObject *object)
{
    EmpathyThemeAdiumPriv *priv = GET_PRIV (object);

    if (priv->smiley_manager) {
        g_object_unref (priv->smiley_manager);
        priv->smiley_manager = NULL;
    }

    if (priv->last_contact) {
        g_object_unref (priv->last_contact);
        priv->last_contact = NULL;
    }

    if (priv->inspector_window) {
        gtk_widget_destroy (priv->inspector_window);
        priv->inspector_window = NULL;
    }

    if (priv->acked_messages.length > 0) {
        g_queue_clear (&priv->acked_messages);
    }

    G_OBJECT_CLASS (empathy_theme_adium_parent_class)->dispose (object);
}

static gboolean
theme_adium_inspector_show_window_cb (WebKitWebInspector *inspector,
                      EmpathyThemeAdium  *theme)
{
    EmpathyThemeAdiumPriv *priv = GET_PRIV (theme);

    if (priv->inspector_window) {
        gtk_widget_show_all (priv->inspector_window);
    }

    return TRUE;
}

static gboolean
theme_adium_inspector_close_window_cb (WebKitWebInspector *inspector,
                       EmpathyThemeAdium  *theme)
{
    EmpathyThemeAdiumPriv *priv = GET_PRIV (theme);

    if (priv->inspector_window) {
        gtk_widget_hide (priv->inspector_window);
    }

    return TRUE;
}

static WebKitWebView *
theme_adium_inspect_web_view_cb (WebKitWebInspector *inspector,
                 WebKitWebView      *web_view,
                 EmpathyThemeAdium  *theme)
{
    EmpathyThemeAdiumPriv *priv = GET_PRIV (theme);
    GtkWidget             *scrolled_window;
    GtkWidget             *inspector_web_view;

    if (!priv->inspector_window) {
        /* Create main window */
        priv->inspector_window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
        gtk_window_set_default_size (GTK_WINDOW (priv->inspector_window),
                         800, 600);
        g_signal_connect (priv->inspector_window, "delete-event",
                  G_CALLBACK (gtk_widget_hide_on_delete), NULL);

        /* Pack a scrolled window */
        scrolled_window = gtk_scrolled_window_new (NULL, NULL);
        gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (scrolled_window),
                        GTK_POLICY_AUTOMATIC,
                        GTK_POLICY_AUTOMATIC);
        gtk_container_add (GTK_CONTAINER (priv->inspector_window),
                   scrolled_window);
        gtk_widget_show  (scrolled_window);

        /* Pack a webview in the scrolled window. That webview will be
         * used to render the inspector tool.  */
        inspector_web_view = webkit_web_view_new ();
        gtk_container_add (GTK_CONTAINER (scrolled_window),
                   inspector_web_view);
        gtk_widget_show (scrolled_window);

        return WEBKIT_WEB_VIEW (inspector_web_view);
    }

    return NULL;
}

static void
theme_adium_constructed (GObject *object)
{
    EmpathyThemeAdiumPriv *priv = GET_PRIV (object);
    const gchar           *font_family = NULL;
    gint                   font_size = 0;
    WebKitWebView         *webkit_view = WEBKIT_WEB_VIEW (object);
    WebKitWebInspector    *webkit_inspector;

    /* Set default settings */
    font_family = tp_asv_get_string (priv->data->info, "DefaultFontFamily");
    font_size = tp_asv_get_int32 (priv->data->info, "DefaultFontSize", NULL);

    if (font_family && font_size) {
        g_object_set (webkit_web_view_get_settings (webkit_view),
            "default-font-family", font_family,
            "default-font-size", font_size,
            NULL);
    } else {
        empathy_webkit_bind_font_setting (webkit_view,
            priv->gsettings_desktop,
            EMPATHY_PREFS_DESKTOP_INTERFACE_DOCUMENT_FONT_NAME);
    }

    /* Setup webkit inspector */
    webkit_inspector = webkit_web_view_get_inspector (webkit_view);
    g_signal_connect (webkit_inspector, "inspect-web-view",
              G_CALLBACK (theme_adium_inspect_web_view_cb),
              object);
    g_signal_connect (webkit_inspector, "show-window",
              G_CALLBACK (theme_adium_inspector_show_window_cb),
              object);
    g_signal_connect (webkit_inspector, "close-window",
              G_CALLBACK (theme_adium_inspector_close_window_cb),
              object);

    /* Load template */
    theme_adium_load_template (EMPATHY_THEME_ADIUM (object));

    priv->in_construction = FALSE;
}

static void
theme_adium_get_property (GObject    *object,
              guint       param_id,
              GValue     *value,
              GParamSpec *pspec)
{
    EmpathyThemeAdiumPriv *priv = GET_PRIV (object);

    switch (param_id) {
    case PROP_ADIUM_DATA:
        g_value_set_boxed (value, priv->data);
        break;
    case PROP_VARIANT:
        g_value_set_string (value, priv->variant);
        break;
    default:
        G_OBJECT_WARN_INVALID_PROPERTY_ID (object, param_id, pspec);
        break;
    };
}

static void
theme_adium_set_property (GObject      *object,
              guint         param_id,
              const GValue *value,
              GParamSpec   *pspec)
{
    EmpathyThemeAdium *theme = EMPATHY_THEME_ADIUM (object);
    EmpathyThemeAdiumPriv *priv = GET_PRIV (object);

    switch (param_id) {
    case PROP_ADIUM_DATA:
        g_assert (priv->data == NULL);
        priv->data = g_value_dup_boxed (value);
        break;
    case PROP_VARIANT:
        empathy_theme_adium_set_variant (theme, g_value_get_string (value));
        break;
    default:
        G_OBJECT_WARN_INVALID_PROPERTY_ID (object, param_id, pspec);
        break;
    };
}

static void
empathy_theme_adium_class_init (EmpathyThemeAdiumClass *klass)
{
    GObjectClass *object_class = G_OBJECT_CLASS (klass);
    GtkWidgetClass* widget_class = GTK_WIDGET_CLASS (klass);

    object_class->finalize = theme_adium_finalize;
    object_class->dispose = theme_adium_dispose;
    object_class->constructed = theme_adium_constructed;
    object_class->get_property = theme_adium_get_property;
    object_class->set_property = theme_adium_set_property;

    widget_class->button_press_event = theme_adium_button_press_event;

    g_object_class_install_property (object_class,
                     PROP_ADIUM_DATA,
                     g_param_spec_boxed ("adium-data",
                                 "The theme data",
                                 "Data for the adium theme",
                                  EMPATHY_TYPE_ADIUM_DATA,
                                  G_PARAM_CONSTRUCT_ONLY |
                                  G_PARAM_READWRITE |
                                  G_PARAM_STATIC_STRINGS));
    g_object_class_install_property (object_class,
                     PROP_VARIANT,
                     g_param_spec_string ("variant",
                                  "The theme variant",
                                  "Variant name for the theme",
                                  NULL,
                                  G_PARAM_CONSTRUCT |
                                  G_PARAM_READWRITE |
                                  G_PARAM_STATIC_STRINGS));

    g_type_class_add_private (object_class, sizeof (EmpathyThemeAdiumPriv));
}

static void
empathy_theme_adium_init (EmpathyThemeAdium *theme)
{
    EmpathyThemeAdiumPriv *priv = G_TYPE_INSTANCE_GET_PRIVATE (theme,
        EMPATHY_TYPE_THEME_ADIUM, EmpathyThemeAdiumPriv);

    theme->priv = priv;

    priv->in_construction = TRUE;
    g_queue_init (&priv->message_queue);
    priv->allow_scrolling = TRUE;
    priv->smiley_manager = empathy_smiley_manager_dup_singleton ();

    g_signal_connect (theme, "load-finished",
              G_CALLBACK (theme_adium_load_finished_cb),
              NULL);
    g_signal_connect (theme, "navigation-policy-decision-requested",
              G_CALLBACK (theme_adium_navigation_policy_decision_requested_cb),
              NULL);

    priv->gsettings_chat = g_settings_new (EMPATHY_PREFS_CHAT_SCHEMA);
    priv->gsettings_desktop = g_settings_new (
        EMPATHY_PREFS_DESKTOP_INTERFACE_SCHEMA);

    g_signal_connect (priv->gsettings_chat,
        "changed::" EMPATHY_PREFS_CHAT_WEBKIT_DEVELOPER_TOOLS,
        G_CALLBACK (theme_adium_notify_enable_webkit_developer_tools_cb),
        theme);

    theme_adium_update_enable_webkit_developer_tools (theme);
}

EmpathyThemeAdium *
empathy_theme_adium_new (EmpathyAdiumData *data,
             const gchar *variant)
{
    g_return_val_if_fail (data != NULL, NULL);

    return g_object_new (EMPATHY_TYPE_THEME_ADIUM,
                 "adium-data", data,
                 "variant", variant,
                 NULL);
}

void
empathy_theme_adium_set_variant (EmpathyThemeAdium *theme,
                 const gchar *variant)
{
    EmpathyThemeAdiumPriv *priv = GET_PRIV (theme);
    gchar *variant_path;
    gchar *script;

    if (!tp_strdiff (priv->variant, variant)) {
        return;
    }

    g_free (priv->variant);
    priv->variant = g_strdup (variant);

    if (priv->in_construction) {
        return;
    }

    DEBUG ("Update view with variant: '%s'", variant);
    variant_path = adium_info_dup_path_for_variant (priv->data->info,
        priv->variant);
    script = g_strdup_printf ("setStylesheet(\"mainStyle\",\"%s\");", variant_path);

    webkit_web_view_execute_script (WEBKIT_WEB_VIEW (theme), script);

    g_free (variant_path);
    g_free (script);

    g_object_notify (G_OBJECT (theme), "variant");
}

void
empathy_theme_adium_show_inspector (EmpathyThemeAdium *theme)
{
    WebKitWebView      *web_view = WEBKIT_WEB_VIEW (theme);
    WebKitWebInspector *inspector;

    g_object_set (G_OBJECT (webkit_web_view_get_settings (web_view)),
              "enable-developer-extras", TRUE,
              NULL);

    inspector = webkit_web_view_get_inspector (web_view);
    webkit_web_inspector_show (inspector);
}

gboolean
empathy_adium_path_is_valid (const gchar *path)
{
    gboolean ret;
    gchar   *file;

    /* The theme is not valid if there is no Info.plist */
    file = g_build_filename (path, "Contents", "Info.plist",
                 NULL);
    ret = g_file_test (file, G_FILE_TEST_EXISTS);
    g_free (file);

    if (!ret)
        return FALSE;

    /* We ship a default Template.html as fallback if there is any problem
     * with the one inside the theme. The only other required file is
     * Content.html OR Incoming/Content.html*/
    file = g_build_filename (path, "Contents", "Resources", "Content.html",
                 NULL);
    ret = g_file_test (file, G_FILE_TEST_EXISTS);
    g_free (file);

    if (!ret) {
        file = g_build_filename (path, "Contents", "Resources", "Incoming",
                     "Content.html", NULL);
        ret = g_file_test (file, G_FILE_TEST_EXISTS);
        g_free (file);
    }

    return ret;
}

GHashTable *
empathy_adium_info_new (const gchar *path)
{
    gchar *file;
    GValue *value;
    GHashTable *info = NULL;

    g_return_val_if_fail (empathy_adium_path_is_valid (path), NULL);

    file = g_build_filename (path, "Contents", "Info.plist", NULL);
    value = empathy_plist_parse_from_file (file);
    g_free (file);

    if (value == NULL)
        return NULL;

    info = g_value_dup_boxed (value);
    tp_g_value_slice_free (value);

    /* Insert the theme's path into the hash table,
     * keys have to be dupped */
    tp_asv_set_string (info, g_strdup ("path"), path);

    return info;
}

static guint
adium_info_get_version (GHashTable *info)
{
    return tp_asv_get_int32 (info, "MessageViewVersion", NULL);
}

static const gchar *
adium_info_get_no_variant_name (GHashTable *info)
{
    const gchar *name = tp_asv_get_string (info, "DisplayNameForNoVariant");
    return name ? name : _("Normal");
}

static gchar *
adium_info_dup_path_for_variant (GHashTable *info,
                 const gchar *variant)
{
    guint version = adium_info_get_version (info);
    const gchar *no_variant = adium_info_get_no_variant_name (info);
    GPtrArray *variants;
    guint i;

    if (version <= 2 && !tp_strdiff (variant, no_variant)) {
        return g_strdup ("main.css");
    }

    variants = empathy_adium_info_get_available_variants (info);
    if (variants->len == 0)
        return g_strdup ("main.css");

    /* Verify the variant exists, fallback to the first one */
    for (i = 0; i < variants->len; i++) {
        if (!tp_strdiff (variant, g_ptr_array_index (variants, i))) {
            break;
        }
    }
    if (i == variants->len) {
        DEBUG ("Variant %s does not exist", variant);
        variant = g_ptr_array_index (variants, 0);
    }

    return g_strdup_printf ("Variants/%s.css", variant);

}

const gchar *
empathy_adium_info_get_default_variant (GHashTable *info)
{
    if (adium_info_get_version (info) <= 2) {
        return adium_info_get_no_variant_name (info);
    }

    return tp_asv_get_string (info, "DefaultVariant");
}

GPtrArray *
empathy_adium_info_get_available_variants (GHashTable *info)
{
    GPtrArray *variants;
    const gchar *path;
    gchar *dirpath;
    GDir *dir;

    variants = tp_asv_get_boxed (info, "AvailableVariants", G_TYPE_PTR_ARRAY);
    if (variants != NULL) {
        return variants;
    }

    variants = g_ptr_array_new_with_free_func (g_free);
    tp_asv_take_boxed (info, g_strdup ("AvailableVariants"),
        G_TYPE_PTR_ARRAY, variants);

    path = tp_asv_get_string (info, "path");
    dirpath = g_build_filename (path, "Contents", "Resources", "Variants", NULL);
    dir = g_dir_open (dirpath, 0, NULL);
    if (dir != NULL) {
        const gchar *name;

        for (name = g_dir_read_name (dir);
             name != NULL;
             name = g_dir_read_name (dir)) {
            gchar *display_name;

            if (!g_str_has_suffix (name, ".css")) {
                continue;
            }

            display_name = g_strdup (name);
            strstr (display_name, ".css")[0] = '\0';
            g_ptr_array_add (variants, display_name);
        }
        g_dir_close (dir);
    }
    g_free (dirpath);

    if (adium_info_get_version (info) <= 2) {
        g_ptr_array_add (variants,
            g_strdup (adium_info_get_no_variant_name (info)));
    }

    return variants;
}

GType
empathy_adium_data_get_type (void)
{
  static GType type_id = 0;

  if (!type_id)
    {
      type_id = g_boxed_type_register_static ("EmpathyAdiumData",
          (GBoxedCopyFunc) empathy_adium_data_ref,
          (GBoxedFreeFunc) empathy_adium_data_unref);
    }

  return type_id;
}

EmpathyAdiumData  *
empathy_adium_data_new_with_info (const gchar *path, GHashTable *info)
{
    EmpathyAdiumData *data;
    gchar            *template_html = NULL;
    gchar            *footer_html = NULL;
    gchar            *tmp;

    g_return_val_if_fail (empathy_adium_path_is_valid (path), NULL);

    data = g_slice_new0 (EmpathyAdiumData);
    data->ref_count = 1;
    data->path = g_strdup (path);
    data->basedir = g_strconcat (path, G_DIR_SEPARATOR_S "Contents"
        G_DIR_SEPARATOR_S "Resources" G_DIR_SEPARATOR_S, NULL);
    data->info = g_hash_table_ref (info);
    data->version = adium_info_get_version (info);
    data->strings_to_free = g_ptr_array_new_with_free_func (g_free);
    data->date_format_cache = g_hash_table_new_full (g_str_hash,
        g_str_equal, g_free, g_free);

    DEBUG ("Loading theme at %s", path);

#define LOAD(path, var) \
        tmp = g_build_filename (data->basedir, path, NULL); \
        g_file_get_contents (tmp, &var, NULL, NULL); \
        g_free (tmp); \

#define LOAD_CONST(path, var) \
    { \
        gchar *content; \
        LOAD (path, content); \
        if (content != NULL) { \
            g_ptr_array_add (data->strings_to_free, content); \
        } \
        var = content; \
    }

    /* Load html files */
    LOAD_CONST ("Content.html", data->content_html);
    LOAD_CONST ("Incoming/Content.html", data->in_content_html);
    LOAD_CONST ("Incoming/NextContent.html", data->in_nextcontent_html);
    LOAD_CONST ("Incoming/Context.html", data->in_context_html);
    LOAD_CONST ("Incoming/NextContext.html", data->in_nextcontext_html);
    LOAD_CONST ("Outgoing/Content.html", data->out_content_html);
    LOAD_CONST ("Outgoing/NextContent.html", data->out_nextcontent_html);
    LOAD_CONST ("Outgoing/Context.html", data->out_context_html);
    LOAD_CONST ("Outgoing/NextContext.html", data->out_nextcontext_html);
    LOAD_CONST ("Status.html", data->status_html);
    LOAD ("Template.html", template_html);
    LOAD ("Footer.html", footer_html);

#undef LOAD_CONST
#undef LOAD

    /* HTML fallbacks: If we have at least content OR in_content, then
     * everything else gets a fallback */

#define FALLBACK(html, fallback) \
    if (html == NULL) { \
        html = fallback; \
    }

    /* in_nextcontent -> in_content -> content */
    FALLBACK (data->in_content_html,      data->content_html);
    FALLBACK (data->in_nextcontent_html,  data->in_content_html);

    /* context -> content */
    FALLBACK (data->in_context_html,      data->in_content_html);
    FALLBACK (data->in_nextcontext_html,  data->in_nextcontent_html);
    FALLBACK (data->out_context_html,     data->out_content_html);
    FALLBACK (data->out_nextcontext_html, data->out_nextcontent_html);

    /* out -> in */
    FALLBACK (data->out_content_html,     data->in_content_html);
    FALLBACK (data->out_nextcontent_html, data->in_nextcontent_html);
    FALLBACK (data->out_context_html,     data->in_context_html);
    FALLBACK (data->out_nextcontext_html, data->in_nextcontext_html);

    /* status -> in_content */
    FALLBACK (data->status_html,          data->in_content_html);

#undef FALLBACK

    /* template -> empathy's template */
    data->custom_template = (template_html != NULL);
    if (template_html == NULL) {
        GError *error = NULL;

        tmp = empathy_file_lookup ("Template.html", "data");

        if (!g_file_get_contents (tmp, &template_html, NULL, &error)) {
            g_warning ("couldn't load Empathy's default theme "
                "template: %s", error->message);
            g_return_val_if_reached (data);
        }

        g_free (tmp);
    }

    /* Default avatar */
    tmp = g_build_filename (data->basedir, "Incoming", "buddy_icon.png", NULL);
    if (g_file_test (tmp, G_FILE_TEST_EXISTS | G_FILE_TEST_IS_REGULAR)) {
        data->default_incoming_avatar_filename = tmp;
    } else {
        g_free (tmp);
    }
    tmp = g_build_filename (data->basedir, "Outgoing", "buddy_icon.png", NULL);
    if (g_file_test (tmp, G_FILE_TEST_EXISTS | G_FILE_TEST_IS_REGULAR)) {
        data->default_outgoing_avatar_filename = tmp;
    } else {
        g_free (tmp);
    }

    /* Old custom templates had only 4 parameters.
     * New templates have 5 parameters */
    if (data->version <= 2 && data->custom_template) {
        tmp = string_with_format (template_html,
            data->basedir,
            "%@", /* Leave variant unset */
            "", /* The header */
            footer_html ? footer_html : "",
            NULL);
    } else {
        tmp = string_with_format (template_html,
            data->basedir,
            data->version <= 2 ? "" : "@import url( \"main.css\" );",
            "%@", /* Leave variant unset */
            "", /* The header */
            footer_html ? footer_html : "",
            NULL);
    }
    g_ptr_array_add (data->strings_to_free, tmp);
    data->template_html = tmp;

    g_free (template_html);
    g_free (footer_html);

    return data;
}

EmpathyAdiumData  *
empathy_adium_data_new (const gchar *path)
{
    EmpathyAdiumData *data;
    GHashTable *info;

    info = empathy_adium_info_new (path);
    data = empathy_adium_data_new_with_info (path, info);
    g_hash_table_unref (info);

    return data;
}

EmpathyAdiumData  *
empathy_adium_data_ref (EmpathyAdiumData *data)
{
    g_return_val_if_fail (data != NULL, NULL);

    g_atomic_int_inc (&data->ref_count);

    return data;
}

void
empathy_adium_data_unref (EmpathyAdiumData *data)
{
    g_return_if_fail (data != NULL);

    if (g_atomic_int_dec_and_test (&data->ref_count)) {
        g_free (data->path);
        g_free (data->basedir);
        g_free (data->default_avatar_filename);
        g_free (data->default_incoming_avatar_filename);
        g_free (data->default_outgoing_avatar_filename);
        g_hash_table_unref (data->info);
        g_ptr_array_unref (data->strings_to_free);
        tp_clear_pointer (&data->date_format_cache, g_hash_table_unref);

        g_slice_free (EmpathyAdiumData, data);
    }
}

GHashTable *
empathy_adium_data_get_info (EmpathyAdiumData *data)
{
    g_return_val_if_fail (data != NULL, NULL);

    return data->info;
}

const gchar *
empathy_adium_data_get_path (EmpathyAdiumData *data)
{
    g_return_val_if_fail (data != NULL, NULL);

    return data->path;
}