Zoom Extension API (work in progress)

chrome/browser/extensions/api/tabs/tabs_api.h

 // Copyright (c) 2012 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 CHROME_BROWSER_EXTENSIONS_API_TABS_TABS_API_H_
 #define CHROME_BROWSER_EXTENSIONS_API_TABS_TABS_API_H_
 
 #include <string>
 #include <vector>
 
 #include "base/compiler_specific.h"
 #include "chrome/browser/extensions/api/capture_web_contents_function.h"
 #include "chrome/browser/extensions/api/execute_code_function.h"
 #include "chrome/browser/extensions/chrome_extension_function.h"
+#include "chrome/browser/ui/zoom/zoom_controller.h"
 #include "chrome/common/extensions/api/tabs.h"
 #include "content/public/browser/notification_observer.h"
 #include "content/public/browser/notification_registrar.h"
 #include "extensions/common/extension_resource.h"
 #include "extensions/common/user_script.h"
 #include "url/gurl.h"
 
 class BackingStore;
 class GURL;
 class SkBitmap;
@@ skipping 10 matching lines @@
 namespace ui {
 class ListSelectionModel;
 }
 
 namespace user_prefs {
 class PrefRegistrySyncable;
 }
 
 namespace extensions {
 
+// Converts a ZoomMode to its ZoomSettings representation.
+void ZoomModeToZoomSettings(ZoomMode zoom_mode,
+                            api::tabs::ZoomSettings* zoom_settings);
+
 // Windows
 class WindowsGetFunction : public ChromeSyncExtensionFunction {
   virtual ~WindowsGetFunction() {}
   virtual bool RunImpl() OVERRIDE;
   DECLARE_EXTENSION_FUNCTION("windows.get", WINDOWS_GET)
 };
 class WindowsGetCurrentFunction : public ChromeSyncExtensionFunction {
   virtual ~WindowsGetCurrentFunction() {}
   virtual bool RunImpl() OVERRIDE;
   DECLARE_EXTENSION_FUNCTION("windows.getCurrent", WINDOWS_GETCURRENT)
@@ skipping 195 matching lines @@
 
 class TabsInsertCSSFunction : public ExecuteCodeInTabFunction {
  private:
   virtual ~TabsInsertCSSFunction() {}
 
   virtual bool ShouldInsertCSS() const OVERRIDE;
 
   DECLARE_EXTENSION_FUNCTION("tabs.insertCSS", TABS_INSERTCSS)
 };
 
+class ZoomAPIFunction : public ChromeAsyncExtensionFunction {
+ protected:
+  virtual ~ZoomAPIFunction() {}
+
+  // Gets the WebContents for |tab_id| if it is specified. Otherwise get the
+  // WebContents for the active tab in the current window.
+  //
+  // TODO(...) many other tabs API functions use similar behavior. There should
+  // be a way to share this implementation somehow.
+  bool GetWebContents(int* tab_id, content::WebContents** web_contents);
+};
+
+class TabsSetZoomFunction : public ZoomAPIFunction {
+ private:
+  virtual ~TabsSetZoomFunction() {}
+
+  virtual bool RunImpl() OVERRIDE;
+
+  DECLARE_EXTENSION_FUNCTION("tabs.setZoom", TABS_SETZOOM)
+};
+
+class TabsGetZoomFunction : public ZoomAPIFunction {
+ private:
+  virtual ~TabsGetZoomFunction() {}
+
+  virtual bool RunImpl() OVERRIDE;
+
+  DECLARE_EXTENSION_FUNCTION("tabs.getZoom", TABS_GETZOOM)
+};
+
+class TabsSetZoomSettingsFunction : public ZoomAPIFunction {
+ private:
+  virtual ~TabsSetZoomSettingsFunction() {}
+
+  virtual bool RunImpl() OVERRIDE;
+
+  DECLARE_EXTENSION_FUNCTION("tabs.setZoomSettings", TABS_SETZOOMSETTINGS)
+};
+
+class TabsGetZoomSettingsFunction : public ZoomAPIFunction {
+ private:
+  virtual ~TabsGetZoomSettingsFunction() {}
+
+  virtual bool RunImpl() OVERRIDE;
+
+  DECLARE_EXTENSION_FUNCTION("tabs.getZoomSettings", TABS_GETZOOMSETTINGS)
+};
+
 }  // namespace extensions
 
 #endif  // CHROME_BROWSER_EXTENSIONS_API_TABS_TABS_API_H_