content/public/common/web_preferences.h - chromium/src - Git at Google

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.

 #ifndef CONTENT_PUBLIC_COMMON_WEB_PREFERENCES_H_
 #define CONTENT_PUBLIC_COMMON_WEB_PREFERENCES_H_

 #include <map>
 #include <string>
 #include <vector>

 #include "base/strings/string16.h"
 #include "build/build_config.h"
 #include "content/common/content_export.h"
 #include "ui/base/touch/touch_device.h"
 #include "url/gurl.h"

 namespace blink {
 class WebView;
 }

 namespace content {

 // Map of ISO 15924 four-letter script code to font family.  For example,
 // "Arab" to "My Arabic Font".
 typedef std::map<std::string, base::string16> ScriptFontFamilyMap;

 enum EditingBehavior {
   EDITING_BEHAVIOR_MAC,
   EDITING_BEHAVIOR_WIN,
   EDITING_BEHAVIOR_UNIX,
   EDITING_BEHAVIOR_ANDROID,
   EDITING_BEHAVIOR_LAST = EDITING_BEHAVIOR_ANDROID
 };

 // Cache options for V8. See V8CacheOptions.h for information on the options.
 enum V8CacheOptions {
   V8_CACHE_OPTIONS_DEFAULT,
   V8_CACHE_OPTIONS_NONE,
   V8_CACHE_OPTIONS_PARSE,
   V8_CACHE_OPTIONS_CODE,
   V8_CACHE_OPTIONS_LAST = V8_CACHE_OPTIONS_CODE
 };

 // ImageAnimationPolicy is used for controlling image animation
 // when image frame is rendered for animation.
 // See third_party/WebKit/Source/platform/graphics/ImageAnimationPolicy.h
 // for information on the options.
 enum ImageAnimationPolicy {
   IMAGE_ANIMATION_POLICY_ALLOWED,
   IMAGE_ANIMATION_POLICY_ANIMATION_ONCE,
   IMAGE_ANIMATION_POLICY_NO_ANIMATION
 };

 enum class ViewportStyle { DEFAULT, MOBILE, TELEVISION, LAST = TELEVISION };

 // Controls when the progress bar reports itself as complete. See
 // third_party/WebKit/Source/core/loader/ProgressTracker.cpp for most of its
 // effects.
 enum class ProgressBarCompletion {
   LOAD_EVENT,
   RESOURCES_BEFORE_DCL,
   DOM_CONTENT_LOADED,
   RESOURCES_BEFORE_DCL_AND_SAME_ORIGIN_IFRAMES,
   LAST = RESOURCES_BEFORE_DCL_AND_SAME_ORIGIN_IFRAMES
 };

 // The ISO 15924 script code for undetermined script aka Common. It's the
 // default used on WebKit's side to get/set a font setting when no script is
 // specified.
 CONTENT_EXPORT extern const char kCommonScript[];

 // A struct for managing blink's settings.
 //
 // Adding new values to this class probably involves updating
 // blink::WebSettings, content/common/view_messages.h, browser/tab_contents/
 // render_view_host_delegate_helper.cc, browser/profiles/profile.cc,
 // and content/public/common/common_param_traits_macros.h
 struct CONTENT_EXPORT WebPreferences {
   ScriptFontFamilyMap standard_font_family_map;
   ScriptFontFamilyMap fixed_font_family_map;
   ScriptFontFamilyMap serif_font_family_map;
   ScriptFontFamilyMap sans_serif_font_family_map;
   ScriptFontFamilyMap cursive_font_family_map;
   ScriptFontFamilyMap fantasy_font_family_map;
   ScriptFontFamilyMap pictograph_font_family_map;
   int default_font_size;
   int default_fixed_font_size;
   int minimum_font_size;
   int minimum_logical_font_size;
   std::string default_encoding;
   bool context_menu_on_mouse_up;
   bool javascript_enabled;
   bool web_security_enabled;
   bool javascript_can_open_windows_automatically;
   bool loads_images_automatically;
   bool images_enabled;
   bool plugins_enabled;
   bool dom_paste_enabled;
   bool shrinks_standalone_images_to_fit;
   bool text_areas_are_resizable;
   bool allow_scripts_to_close_windows;
   bool remote_fonts_enabled;
   bool javascript_can_access_clipboard;
   bool xslt_enabled;
   bool xss_auditor_enabled;
   // We don't use dns_prefetching_enabled to disable DNS prefetching.  Instead,
   // we disable the feature at a lower layer so that we catch non-WebKit uses
   // of DNS prefetch as well.
   bool dns_prefetching_enabled;
   // Preference to save data. When enabled, requests will contain the header
   // 'Save-Data: on'.
   bool data_saver_enabled;
   bool local_storage_enabled;
   bool databases_enabled;
   bool application_cache_enabled;
   bool tabs_to_links;
   bool history_entry_requires_user_gesture;
   bool hyperlink_auditing_enabled;
   bool allow_universal_access_from_file_urls;
   bool allow_file_access_from_file_urls;
   bool experimental_webgl_enabled;
   bool pepper_3d_enabled;
   bool flash_3d_enabled;
   bool flash_stage3d_enabled;
   bool flash_stage3d_baseline_enabled;
   bool privileged_webgl_extensions_enabled;
   bool webgl_errors_to_console_enabled;
   bool mock_scrollbars_enabled;
   bool hide_scrollbars;
   bool accelerated_2d_canvas_enabled;
   int minimum_accelerated_2d_canvas_size;
   bool disable_2d_canvas_copy_on_write;
   bool antialiased_2d_canvas_disabled;
   bool antialiased_clips_2d_canvas_enabled;
   int accelerated_2d_canvas_msaa_sample_count;
   bool accelerated_filters_enabled;
   bool deferred_filters_enabled;
   bool container_culling_enabled;
   bool allow_running_insecure_content;
   // If true, taints all <canvas> elements, regardless of origin.
   bool disable_reading_from_canvas;
   // Strict mixed content checking disables both displaying and running insecure
   // mixed content, and disables embedder notifications that such content was
   // requested (thereby preventing user override).
   bool strict_mixed_content_checking;
   // Strict powerful feature restrictions block insecure usage of powerful
   // features (like device orientation) that we haven't yet disabled for the web
   // at large.
   bool strict_powerful_feature_restrictions;
   // TODO(jww): Remove when WebView no longer needs this exception.
   bool allow_geolocation_on_insecure_origins;
   // Disallow user opt-in for blockable mixed content.
   bool strictly_block_blockable_mixed_content;
   bool block_mixed_plugin_content;
   bool password_echo_enabled;
   bool should_print_backgrounds;
   bool should_clear_document_background;
   bool enable_scroll_animator;
   bool css_variables_enabled;
   bool touch_enabled;
   // TODO(mustaq): Nuke when the new API is ready
   bool device_supports_touch;
   // TODO(mustaq): Nuke when the new API is ready
   bool device_supports_mouse;
   bool touch_adjustment_enabled;
   int pointer_events_max_touch_points;
   int available_pointer_types;
   ui::PointerType primary_pointer_type;
   int available_hover_types;
   ui::HoverType primary_hover_type;
   bool sync_xhr_in_documents_enabled;
   bool color_correct_rendering_enabled = false;
   bool should_respect_image_orientation;
   int number_of_cpu_cores;
   EditingBehavior editing_behavior;
   bool supports_multiple_windows;
   bool viewport_enabled;
   bool viewport_meta_enabled;
   bool shrinks_viewport_contents_to_fit;
   ViewportStyle viewport_style;
   bool always_show_context_menu_on_touch;
   bool main_frame_resizes_are_orientation_changes;
   bool initialize_at_minimum_page_scale;
   bool smart_insert_delete_enabled;
   bool spatial_navigation_enabled;
   bool use_solid_color_scrollbars;
   bool navigate_on_drag_drop;
   V8CacheOptions v8_cache_options;
   bool inert_visual_viewport;
   bool record_whole_document;

   // This flags corresponds to a Page's Settings' setCookieEnabled state. It
   // only controls whether or not the "document.cookie" field is properly
   // connected to the backing store, for instance if you wanted to be able to
   // define custom getters and setters from within a unique security content
   // without raising a DOM security exception.
   bool cookie_enabled;

   // This flag indicates whether H/W accelerated video decode is enabled for
   // pepper plugins. Defaults to false.
   bool pepper_accelerated_video_decode_enabled;

   ImageAnimationPolicy animation_policy;

   bool user_gesture_required_for_presentation;

   // Specifies the margin for WebVTT text tracks as a percentage of media
   // element height/width (for horizontal/vertical text respectively).
   // Cues will not be placed in this margin area.
   float text_track_margin_percentage;

   // Specifies aggressiveness of background tab throttling.
   // expensive_background_throttling_cpu_budget is given in percentages,
   // other values are in seconds.
   float expensive_background_throttling_cpu_budget;
   float expensive_background_throttling_initial_budget;
   float expensive_background_throttling_max_budget;
   float expensive_background_throttling_max_delay;

 #if defined(OS_ANDROID)
   bool text_autosizing_enabled;
   float font_scale_factor;
   float device_scale_adjustment;
   bool force_enable_zoom;
   bool fullscreen_supported;
   bool double_tap_to_zoom_enabled;
   bool user_gesture_required_for_media_playback;
   GURL default_video_poster_url;
   bool support_deprecated_target_density_dpi;
   bool use_legacy_background_size_shorthand_behavior;
   bool wide_viewport_quirk;
   bool use_wide_viewport;
   bool force_zero_layout_height;
   bool viewport_meta_layout_size_quirk;
   bool viewport_meta_merge_content_quirk;
   bool viewport_meta_non_user_scalable_quirk;
   bool viewport_meta_zero_values_quirk;
   bool clobber_user_agent_initial_scale_quirk;
   bool ignore_main_frame_overflow_hidden_quirk;
   bool report_screen_size_in_physical_pixels_quirk;
   // Used by Android_WebView only to support legacy apps that inject script into
   // a top-level initial empty document and expect it to persist on navigation.
   bool resue_global_for_unowned_main_frame;
   ProgressBarCompletion progress_bar_completion;
   // Specifies default setting for spellcheck when the spellcheck attribute is
   // not explicitly specified.
   bool spellcheck_enabled_by_default;
 #endif

   // String that describes how media element autoplay behavior should be
   // affected by experiment.
   std::string autoplay_experiment_mode;

   // Default (used if the page or UA doesn't override these) values for page
   // scale limits. These are set directly on the WebView so there's no analogue
   // in WebSettings.
   float default_minimum_page_scale_factor;
   float default_maximum_page_scale_factor;

   // Whether download UI should be hidden on this page.
   bool hide_download_ui;

   // If enabled, disabled video track when the video is in the background.
   bool background_video_track_optimization_enabled;

   // We try to keep the default values the same as the default values in
   // chrome, except for the cases where it would require lots of extra work for
   // the embedder to use the same default value.
   WebPreferences();
   WebPreferences(const WebPreferences& other);
   ~WebPreferences();
 };

 }  // namespace content

 #endif  // CONTENT_PUBLIC_COMMON_WEB_PREFERENCES_H_
	// Copyright 2014 The Chromium Authors. All rights reserved.
	// Use of this source code is governed by a BSD-style license that can be
	// found in the LICENSE file.

	#ifndef CONTENT_PUBLIC_COMMON_WEB_PREFERENCES_H_
	#define CONTENT_PUBLIC_COMMON_WEB_PREFERENCES_H_

	#include <map>
	#include <string>
	#include <vector>

	#include "base/strings/string16.h"
	#include "build/build_config.h"
	#include "content/common/content_export.h"
	#include "ui/base/touch/touch_device.h"
	#include "url/gurl.h"

	namespace blink {
	class WebView;
	}

	namespace content {

	// Map of ISO 15924 four-letter script code to font family. For example,
	// "Arab" to "My Arabic Font".
	typedef std::map<std::string, base::string16> ScriptFontFamilyMap;

	enum EditingBehavior {
	EDITING_BEHAVIOR_MAC,
	EDITING_BEHAVIOR_WIN,
	EDITING_BEHAVIOR_UNIX,
	EDITING_BEHAVIOR_ANDROID,
	EDITING_BEHAVIOR_LAST = EDITING_BEHAVIOR_ANDROID
	};

	// Cache options for V8. See V8CacheOptions.h for information on the options.
	enum V8CacheOptions {
	V8_CACHE_OPTIONS_DEFAULT,
	V8_CACHE_OPTIONS_NONE,
	V8_CACHE_OPTIONS_PARSE,
	V8_CACHE_OPTIONS_CODE,
	V8_CACHE_OPTIONS_LAST = V8_CACHE_OPTIONS_CODE
	};

	// ImageAnimationPolicy is used for controlling image animation
	// when image frame is rendered for animation.
	// See third_party/WebKit/Source/platform/graphics/ImageAnimationPolicy.h
	// for information on the options.
	enum ImageAnimationPolicy {
	IMAGE_ANIMATION_POLICY_ALLOWED,
	IMAGE_ANIMATION_POLICY_ANIMATION_ONCE,
	IMAGE_ANIMATION_POLICY_NO_ANIMATION
	};

	enum class ViewportStyle { DEFAULT, MOBILE, TELEVISION, LAST = TELEVISION };

	// Controls when the progress bar reports itself as complete. See
	// third_party/WebKit/Source/core/loader/ProgressTracker.cpp for most of its
	// effects.
	enum class ProgressBarCompletion {
	LOAD_EVENT,
	RESOURCES_BEFORE_DCL,
	DOM_CONTENT_LOADED,
	RESOURCES_BEFORE_DCL_AND_SAME_ORIGIN_IFRAMES,
	LAST = RESOURCES_BEFORE_DCL_AND_SAME_ORIGIN_IFRAMES
	};

	// The ISO 15924 script code for undetermined script aka Common. It's the
	// default used on WebKit's side to get/set a font setting when no script is
	// specified.
	CONTENT_EXPORT extern const char kCommonScript[];

	// A struct for managing blink's settings.
	//
	// Adding new values to this class probably involves updating
	// blink::WebSettings, content/common/view_messages.h, browser/tab_contents/
	// render_view_host_delegate_helper.cc, browser/profiles/profile.cc,
	// and content/public/common/common_param_traits_macros.h
	struct CONTENT_EXPORT WebPreferences {
	ScriptFontFamilyMap standard_font_family_map;
	ScriptFontFamilyMap fixed_font_family_map;
	ScriptFontFamilyMap serif_font_family_map;
	ScriptFontFamilyMap sans_serif_font_family_map;
	ScriptFontFamilyMap cursive_font_family_map;
	ScriptFontFamilyMap fantasy_font_family_map;
	ScriptFontFamilyMap pictograph_font_family_map;
	int default_font_size;
	int default_fixed_font_size;
	int minimum_font_size;
	int minimum_logical_font_size;
	std::string default_encoding;
	bool context_menu_on_mouse_up;
	bool javascript_enabled;
	bool web_security_enabled;
	bool javascript_can_open_windows_automatically;
	bool loads_images_automatically;
	bool images_enabled;
	bool plugins_enabled;
	bool dom_paste_enabled;
	bool shrinks_standalone_images_to_fit;
	bool text_areas_are_resizable;
	bool allow_scripts_to_close_windows;
	bool remote_fonts_enabled;
	bool javascript_can_access_clipboard;
	bool xslt_enabled;
	bool xss_auditor_enabled;
	// We don't use dns_prefetching_enabled to disable DNS prefetching. Instead,
	// we disable the feature at a lower layer so that we catch non-WebKit uses
	// of DNS prefetch as well.
	bool dns_prefetching_enabled;
	// Preference to save data. When enabled, requests will contain the header
	// 'Save-Data: on'.
	bool data_saver_enabled;
	bool local_storage_enabled;
	bool databases_enabled;
	bool application_cache_enabled;
	bool tabs_to_links;
	bool history_entry_requires_user_gesture;
	bool hyperlink_auditing_enabled;
	bool allow_universal_access_from_file_urls;
	bool allow_file_access_from_file_urls;
	bool experimental_webgl_enabled;
	bool pepper_3d_enabled;
	bool flash_3d_enabled;
	bool flash_stage3d_enabled;
	bool flash_stage3d_baseline_enabled;
	bool privileged_webgl_extensions_enabled;
	bool webgl_errors_to_console_enabled;
	bool mock_scrollbars_enabled;
	bool hide_scrollbars;
	bool accelerated_2d_canvas_enabled;
	int minimum_accelerated_2d_canvas_size;
	bool disable_2d_canvas_copy_on_write;
	bool antialiased_2d_canvas_disabled;
	bool antialiased_clips_2d_canvas_enabled;
	int accelerated_2d_canvas_msaa_sample_count;
	bool accelerated_filters_enabled;
	bool deferred_filters_enabled;
	bool container_culling_enabled;
	bool allow_running_insecure_content;
	// If true, taints all <canvas> elements, regardless of origin.
	bool disable_reading_from_canvas;
	// Strict mixed content checking disables both displaying and running insecure
	// mixed content, and disables embedder notifications that such content was
	// requested (thereby preventing user override).
	bool strict_mixed_content_checking;
	// Strict powerful feature restrictions block insecure usage of powerful
	// features (like device orientation) that we haven't yet disabled for the web
	// at large.
	bool strict_powerful_feature_restrictions;
	// TODO(jww): Remove when WebView no longer needs this exception.
	bool allow_geolocation_on_insecure_origins;
	// Disallow user opt-in for blockable mixed content.
	bool strictly_block_blockable_mixed_content;
	bool block_mixed_plugin_content;
	bool password_echo_enabled;
	bool should_print_backgrounds;
	bool should_clear_document_background;
	bool enable_scroll_animator;
	bool css_variables_enabled;
	bool touch_enabled;
	// TODO(mustaq): Nuke when the new API is ready
	bool device_supports_touch;
	// TODO(mustaq): Nuke when the new API is ready
	bool device_supports_mouse;
	bool touch_adjustment_enabled;
	int pointer_events_max_touch_points;
	int available_pointer_types;
	ui::PointerType primary_pointer_type;
	int available_hover_types;
	ui::HoverType primary_hover_type;
	bool sync_xhr_in_documents_enabled;
	bool color_correct_rendering_enabled = false;
	bool should_respect_image_orientation;
	int number_of_cpu_cores;
	EditingBehavior editing_behavior;
	bool supports_multiple_windows;
	bool viewport_enabled;
	bool viewport_meta_enabled;
	bool shrinks_viewport_contents_to_fit;
	ViewportStyle viewport_style;
	bool always_show_context_menu_on_touch;
	bool main_frame_resizes_are_orientation_changes;
	bool initialize_at_minimum_page_scale;
	bool smart_insert_delete_enabled;
	bool spatial_navigation_enabled;
	bool use_solid_color_scrollbars;
	bool navigate_on_drag_drop;
	V8CacheOptions v8_cache_options;
	bool inert_visual_viewport;
	bool record_whole_document;

	// This flags corresponds to a Page's Settings' setCookieEnabled state. It
	// only controls whether or not the "document.cookie" field is properly
	// connected to the backing store, for instance if you wanted to be able to
	// define custom getters and setters from within a unique security content
	// without raising a DOM security exception.
	bool cookie_enabled;

	// This flag indicates whether H/W accelerated video decode is enabled for
	// pepper plugins. Defaults to false.
	bool pepper_accelerated_video_decode_enabled;

	ImageAnimationPolicy animation_policy;

	bool user_gesture_required_for_presentation;

	// Specifies the margin for WebVTT text tracks as a percentage of media
	// element height/width (for horizontal/vertical text respectively).
	// Cues will not be placed in this margin area.
	float text_track_margin_percentage;

	// Specifies aggressiveness of background tab throttling.
	// expensive_background_throttling_cpu_budget is given in percentages,
	// other values are in seconds.
	float expensive_background_throttling_cpu_budget;
	float expensive_background_throttling_initial_budget;
	float expensive_background_throttling_max_budget;
	float expensive_background_throttling_max_delay;

	#if defined(OS_ANDROID)
	bool text_autosizing_enabled;
	float font_scale_factor;
	float device_scale_adjustment;
	bool force_enable_zoom;
	bool fullscreen_supported;
	bool double_tap_to_zoom_enabled;
	bool user_gesture_required_for_media_playback;
	GURL default_video_poster_url;
	bool support_deprecated_target_density_dpi;
	bool use_legacy_background_size_shorthand_behavior;
	bool wide_viewport_quirk;
	bool use_wide_viewport;
	bool force_zero_layout_height;
	bool viewport_meta_layout_size_quirk;
	bool viewport_meta_merge_content_quirk;
	bool viewport_meta_non_user_scalable_quirk;
	bool viewport_meta_zero_values_quirk;
	bool clobber_user_agent_initial_scale_quirk;
	bool ignore_main_frame_overflow_hidden_quirk;
	bool report_screen_size_in_physical_pixels_quirk;
	// Used by Android_WebView only to support legacy apps that inject script into
	// a top-level initial empty document and expect it to persist on navigation.
	bool resue_global_for_unowned_main_frame;
	ProgressBarCompletion progress_bar_completion;
	// Specifies default setting for spellcheck when the spellcheck attribute is
	// not explicitly specified.
	bool spellcheck_enabled_by_default;
	#endif

	// String that describes how media element autoplay behavior should be
	// affected by experiment.
	std::string autoplay_experiment_mode;

	// Default (used if the page or UA doesn't override these) values for page
	// scale limits. These are set directly on the WebView so there's no analogue
	// in WebSettings.
	float default_minimum_page_scale_factor;
	float default_maximum_page_scale_factor;

	// Whether download UI should be hidden on this page.
	bool hide_download_ui;

	// If enabled, disabled video track when the video is in the background.
	bool background_video_track_optimization_enabled;

	// We try to keep the default values the same as the default values in
	// chrome, except for the cases where it would require lots of extra work for
	// the embedder to use the same default value.
	WebPreferences();
	WebPreferences(const WebPreferences& other);
	~WebPreferences();
	};

	} // namespace content

	#endif // CONTENT_PUBLIC_COMMON_WEB_PREFERENCES_H_