webkitwebsettings.cpp

linux下开源浏览器WebKit的源码,市面上的很多商用浏览器都是移植自WebKit

/*
 * Copyright (C) 2008 Christian Dywan <[e-mail]>
 * Copyright (C) 2008 Nuanti Ltd.
 * Copyright (C) 2008 Collabora Ltd.
 * Copyright (C) 2008 Holger Hans Peter Freyther
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Library General Public
 * License as published by the Free Software Foundation; either
 * version 2 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
 * Library General Public License for more details.
 *
 * You should have received a copy of the GNU Library General Public License
 * along with this library; see the file COPYING.LIB.  If not, write to
 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
 * Boston, MA 02110-1301, USA.
 */

#include "config.h"

#include "webkitwebsettings.h"
#include "webkitprivate.h"

#include "FileSystem.h"
#include "PluginDatabase.h"

/**
 * SECTION:webkitwebsettings
 * @short_description: Control the behaviour of a #WebKitWebView
 *
 * #WebKitWebSettings can be applied to a #WebKitWebView to control
 * the to be used text encoding, color, font sizes, printing mode,
 * script support, loading of images and various other things.
 *
 * <informalexample><programlisting>
 * /<!-- -->* Create a new websettings and disable java script *<!-- -->/
 * WebKitWebSettings *settings = webkit_web_settings_new ();
 * g_object_set (G_OBJECT(settings), "enable-scripts", FALSE, NULL);
 *
 * /<!-- -->* Apply the result *<!-- -->/
 * webkit_web_view_set_settings (WEBKIT_WEB_VIEW(my_webview), settings);
 * </programlisting></informalexample>
 */

using namespace WebCore;

extern "C" {

G_DEFINE_TYPE(WebKitWebSettings, webkit_web_settings, G_TYPE_OBJECT)

struct _WebKitWebSettingsPrivate {
    gchar* default_encoding;
    gchar* cursive_font_family;
    gchar* default_font_family;
    gchar* fantasy_font_family;
    gchar* monospace_font_family;
    gchar* sans_serif_font_family;
    gchar* serif_font_family;
    guint default_font_size;
    guint default_monospace_font_size;
    guint minimum_font_size;
    guint minimum_logical_font_size;
    gboolean enforce_96_dpi;
    gboolean auto_load_images;
    gboolean auto_shrink_images;
    gboolean print_backgrounds;
    gboolean enable_scripts;
    gboolean enable_plugins;
    gboolean resizable_text_areas;
    gchar* user_stylesheet_uri;
    gfloat zoom_step;
    gboolean enable_developer_extras;
};

#define WEBKIT_WEB_SETTINGS_GET_PRIVATE(obj) (G_TYPE_INSTANCE_GET_PRIVATE((obj), WEBKIT_TYPE_WEB_SETTINGS, WebKitWebSettingsPrivate))

enum {
    PROP_0,

    PROP_DEFAULT_ENCODING,
    PROP_CURSIVE_FONT_FAMILY,
    PROP_DEFAULT_FONT_FAMILY,
    PROP_FANTASY_FONT_FAMILY,
    PROP_MONOSPACE_FONT_FAMILY,
    PROP_SANS_SERIF_FONT_FAMILY,
    PROP_SERIF_FONT_FAMILY,
    PROP_DEFAULT_FONT_SIZE,
    PROP_DEFAULT_MONOSPACE_FONT_SIZE,
    PROP_MINIMUM_FONT_SIZE,
    PROP_MINIMUM_LOGICAL_FONT_SIZE,
    PROP_ENFORCE_96_DPI,
    PROP_AUTO_LOAD_IMAGES,
    PROP_AUTO_SHRINK_IMAGES,
    PROP_PRINT_BACKGROUNDS,
    PROP_ENABLE_SCRIPTS,
    PROP_ENABLE_PLUGINS,
    PROP_RESIZABLE_TEXT_AREAS,
    PROP_USER_STYLESHEET_URI,
    PROP_ZOOM_STEP,
    PROP_ENABLE_DEVELOPER_EXTRAS
};

static void webkit_web_settings_finalize(GObject* object);

static void webkit_web_settings_set_property(GObject* object, guint prop_id, const GValue* value, GParamSpec* pspec);

static void webkit_web_settings_get_property(GObject* object, guint prop_id, GValue* value, GParamSpec* pspec);

static void webkit_web_settings_class_init(WebKitWebSettingsClass* klass)
{
    GObjectClass* gobject_class = G_OBJECT_CLASS(klass);
    gobject_class->finalize = webkit_web_settings_finalize;
    gobject_class->set_property = webkit_web_settings_set_property;
    gobject_class->get_property = webkit_web_settings_get_property;

    GParamFlags flags = (GParamFlags)(WEBKIT_PARAM_READWRITE | G_PARAM_CONSTRUCT);

    g_object_class_install_property(gobject_class,
                                    PROP_DEFAULT_ENCODING,
                                    g_param_spec_string(
                                    "default-encoding",
                                    "Default Encoding",
                                    "The default encoding used to display text.",
                                    "iso-8859-1",
                                    flags));

    g_object_class_install_property(gobject_class,
                                    PROP_CURSIVE_FONT_FAMILY,
                                    g_param_spec_string(
                                    "cursive-font-family",
                                    "Cursive Font Family",
                                    "The default Cursive font family used to display text.",
                                    "serif",
                                    flags));

    g_object_class_install_property(gobject_class,
                                    PROP_DEFAULT_FONT_FAMILY,
                                    g_param_spec_string(
                                    "default-font-family",
                                    "Default Font Family",
                                    "The default font family used to display text.",
                                    "sans-serif",
                                    flags));

    g_object_class_install_property(gobject_class,
                                    PROP_FANTASY_FONT_FAMILY,
                                    g_param_spec_string(
                                    "fantasy-font-family",
                                    "Fantasy Font Family",
                                    "The default Fantasy font family used to display text.",
                                    "serif",
                                    flags));

    g_object_class_install_property(gobject_class,
                                    PROP_MONOSPACE_FONT_FAMILY,
                                    g_param_spec_string(
                                    "monospace-font-family",
                                    "Monospace Font Family",
                                    "The default font family used to display monospace text.",
                                    "monospace",
                                    flags));

    g_object_class_install_property(gobject_class,
                                    PROP_SANS_SERIF_FONT_FAMILY,
                                    g_param_spec_string(
                                    "sans-serif-font-family",
                                    "Sans Serif Font Family",
                                    "The default Sans Serif font family used to display text.",
                                    "sans-serif",
                                    flags));

    g_object_class_install_property(gobject_class,
                                    PROP_SERIF_FONT_FAMILY,
                                    g_param_spec_string(
                                    "serif-font-family",
                                    "Serif Font Family",
                                    "The default Serif font family used to display text.",
                                    "serif",
                                    flags));

    g_object_class_install_property(gobject_class,
                                    PROP_DEFAULT_FONT_SIZE,
                                    g_param_spec_int(
                                    "default-font-size",
                                    "Default Font Size",
                                    "The default font size used to display text.",
                                    5, G_MAXINT, 12,
                                    flags));

    g_object_class_install_property(gobject_class,
                                    PROP_DEFAULT_MONOSPACE_FONT_SIZE,
                                    g_param_spec_int(
                                    "default-monospace-font-size",
                                    "Default Monospace Font Size",
                                    "The default font size used to display monospace text.",
                                    5, G_MAXINT, 10,
                                    flags));

    g_object_class_install_property(gobject_class,
                                    PROP_MINIMUM_FONT_SIZE,
                                    g_param_spec_int(
                                    "minimum-font-size",
                                    "Minimum Font Size",
                                    "The minimum font size used to display text.",
                                    1, G_MAXINT, 5,
                                    flags));

    g_object_class_install_property(gobject_class,
                                    PROP_MINIMUM_LOGICAL_FONT_SIZE,
                                    g_param_spec_int(
                                    "minimum-logical-font-size",
                                    "Minimum Logical Font Size",
                                    "The minimum logical font size used to display text.",
                                    1, G_MAXINT, 5,
                                    flags));

    /**
    * WebKitWebSettings:enforce-96-dpi:
    *
    * Enforce a resolution of 96 DPI. This is meant for compatibility
    * with web pages which cope badly with different screen resolutions
    * and for automated testing.
    * Web browsers and applications that typically display arbitrary
    * content from the web should provide a preference for this.
    *
    * Since: 1.0.3
    */
    g_object_class_install_property(gobject_class,
                                    PROP_ENFORCE_96_DPI,
                                    g_param_spec_boolean(
                                    "enforce-96-dpi",
                                    "Enforce 96 DPI",
                                    "Enforce a resolution of 96 DPI",
                                    FALSE,
                                    flags));

    g_object_class_install_property(gobject_class,
                                    PROP_AUTO_LOAD_IMAGES,
                                    g_param_spec_boolean(
                                    "auto-load-images",
                                    "Auto Load Images",
                                    "Load images automatically.",
                                    TRUE,
                                    flags));

    g_object_class_install_property(gobject_class,
                                    PROP_AUTO_SHRINK_IMAGES,
                                    g_param_spec_boolean(
                                    "auto-shrink-images",
                                    "Auto Shrink Images",
                                    "Automatically shrink standalone images to fit.",
                                    TRUE,
                                    flags));

    g_object_class_install_property(gobject_class,
                                    PROP_PRINT_BACKGROUNDS,
                                    g_param_spec_boolean(
                                    "print-backgrounds",
                                    "Print Backgrounds",
                                    "Whether background images should be printed.",
                                    TRUE,
                                    flags));

    g_object_class_install_property(gobject_class,
                                    PROP_ENABLE_SCRIPTS,
                                    g_param_spec_boolean(
                                    "enable-scripts",
                                    "Enable Scripts",
                                    "Enable embedded scripting languages.",
                                    TRUE,
                                    flags));

    g_object_class_install_property(gobject_class,
                                    PROP_ENABLE_PLUGINS,
                                    g_param_spec_boolean(
                                    "enable-plugins",
                                    "Enable Plugins",
                                    "Enable embedded plugin objects.",
                                    TRUE,
                                    flags));

    g_object_class_install_property(gobject_class,
                                    PROP_RESIZABLE_TEXT_AREAS,
                                    g_param_spec_boolean(
                                    "resizable-text-areas",
                                    "Resizable Text Areas",
                                    "Whether text areas are resizable.",
                                    TRUE,
                                    flags));