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Unified Diff: chrome/browser/window_sizer.h

Issue 5544002: Move a bunch more browser stuff around.... (Closed) Base URL: svn://svn.chromium.org/chrome/trunk/src/
Patch Set: Created 10 years ago
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Index: chrome/browser/window_sizer.h
===================================================================
--- chrome/browser/window_sizer.h (revision 68008)
+++ chrome/browser/window_sizer.h (working copy)
@@ -1,184 +0,0 @@
-// Copyright (c) 2010 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_WINDOW_SIZER_H_
-#define CHROME_BROWSER_WINDOW_SIZER_H_
-#pragma once
-
-#include <vector>
-
-#include "base/basictypes.h"
-#include "gfx/rect.h"
-
-class Browser;
-
-///////////////////////////////////////////////////////////////////////////////
-// WindowSizer
-//
-// A class that determines the best new size and position for a window to be
-// shown at based several factors, including the position and size of the last
-// window of the same type, the last saved bounds of the window from the
-// previous session, and default system metrics if neither of the above two
-// conditions exist. The system has built-in providers for monitor metrics
-// and persistent storage (using preferences) but can be overrided with mocks
-// for testing.
-//
-class WindowSizer {
- public:
- class MonitorInfoProvider;
- class StateProvider;
-
- // The WindowSizer assumes ownership of these objects.
- WindowSizer(StateProvider* state_provider,
- MonitorInfoProvider* monitor_info_provider);
- virtual ~WindowSizer();
-
- // Static factory methods to create default MonitorInfoProvider
- // instances. The returned object is owned by the caller.
- static MonitorInfoProvider* CreateDefaultMonitorInfoProvider();
-
- // An interface implemented by an object that can retrieve information about
- // the monitors on the system.
- class MonitorInfoProvider {
- public:
- MonitorInfoProvider();
- virtual ~MonitorInfoProvider();
-
- // Returns the bounds of the work area of the primary monitor.
- virtual gfx::Rect GetPrimaryMonitorWorkArea() const = 0;
-
- // Returns the bounds of the primary monitor.
- virtual gfx::Rect GetPrimaryMonitorBounds() const = 0;
-
- // Returns the bounds of the work area of the monitor that most closely
- // intersects the provided bounds.
- virtual gfx::Rect GetMonitorWorkAreaMatching(
- const gfx::Rect& match_rect) const = 0;
-
- // Returns the delta between the work area and the monitor bounds for the
- // monitor that most closely intersects the provided bounds.
- virtual gfx::Point GetBoundsOffsetMatching(
- const gfx::Rect& match_rect) const = 0;
-
- // Ensures number and coordinates of work areas are up-to-date. You must
- // call this before calling either of the below functions, as work areas can
- // change while the program is running.
- virtual void UpdateWorkAreas() = 0;
-
- // Returns the number of monitors on the system.
- size_t GetMonitorCount() const {
- return work_areas_.size();
- }
-
- // Returns the bounds of the work area of the monitor at the specified
- // index.
- gfx::Rect GetWorkAreaAt(size_t index) const {
- return work_areas_[index];
- }
-
- protected:
- std::vector<gfx::Rect> work_areas_;
- };
-
- // An interface implemented by an object that can retrieve state from either a
- // persistent store or an existing window.
- class StateProvider {
- public:
- virtual ~StateProvider() { }
-
- // Retrieve the persisted bounds of the window. Returns true if there was
- // persisted data to retrieve state information, false otherwise.
- virtual bool GetPersistentState(gfx::Rect* bounds,
- bool* maximized,
- gfx::Rect* work_area) const = 0;
-
- // Retrieve the bounds of the most recent window of the matching type.
- // Returns true if there was a last active window to retrieve state
- // information from, false otherwise.
- virtual bool GetLastActiveWindowState(gfx::Rect* bounds) const = 0;
- };
-
- // Determines the position, size and maximized state for a window as it is
- // created. This function uses several strategies to figure out optimal size
- // and placement, first looking for an existing active window, then falling
- // back to persisted data from a previous session, finally utilizing a default
- // algorithm. If |specified_bounds| are non-empty, this value is returned
- // instead. For use only in testing.
- //
- // NOTE: |maximized| is only set if we're restoring a saved maximized window.
- // When creating a new window based on an existing active window, standard
- // Windows behavior is to have it always be nonmaximized, even if the existing
- // window is maximized.
- void DetermineWindowBounds(const gfx::Rect& specified_bounds,
- gfx::Rect* bounds,
- bool* maximized) const;
-
- // Determines the size, position and maximized state for the browser window.
- // See documentation for DetermineWindowBounds above. Normally,
- // |window_bounds| is calculated by calling GetLastActiveWindowState(). To
- // explicitly specify a particular window to base the bounds on, pass in a
- // non-NULL value for |browser|.
- static void GetBrowserWindowBounds(const std::string& app_name,
- const gfx::Rect& specified_bounds,
- Browser* browser,
- gfx::Rect* window_bounds,
- bool* maximized);
-
- // Returns the default origin for popups of the given size.
- static gfx::Point GetDefaultPopupOrigin(const gfx::Size& size);
-
- // How much horizontal and vertical offset there is between newly
- // opened windows. This value may be different on each platform.
- static const int kWindowTilePixels;
-
- private:
- // The edge of the screen to check for out-of-bounds.
- enum Edge { TOP, LEFT, BOTTOM, RIGHT };
-
- explicit WindowSizer(const std::string& app_name);
-
- void Init(StateProvider* state_provider,
- MonitorInfoProvider* monitor_info_provider);
-
- // Gets the size and placement of the last window. Returns true if this data
- // is valid, false if there is no last window and the application should
- // restore saved state from preferences using RestoreWindowPosition.
- bool GetLastWindowBounds(gfx::Rect* bounds) const;
-
- // Gets the size and placement of the last window in the last session, saved
- // in local state preferences. Returns true if local state exists containing
- // this information, false if this information does not exist and a default
- // size should be used.
- bool GetSavedWindowBounds(gfx::Rect* bounds, bool* maximized) const;
-
- // Gets the default window position and size if there is no last window and
- // no saved window placement in prefs. This function determines the default
- // size based on monitor size, etc.
- void GetDefaultWindowBounds(gfx::Rect* default_bounds) const;
-
- // Returns true if the specified position is "offscreen" for the given edge,
- // meaning that it's outside all work areas in the direction of that edge.
- bool PositionIsOffscreen(int position, Edge edge) const;
-
- // Adjusts |bounds| to be visible onscreen, biased toward the work area of the
- // monitor containing |other_bounds|. Despite the name, this doesn't
- // guarantee the bounds are fully contained within this monitor's work rect;
- // it just tried to ensure the edges are visible on _some_ work rect.
- // If |saved_work_area| is non-empty, it is used to determine whether the
- // monitor cofiguration has changed. If it has, bounds are repositioned and
- // resized if necessary to make them completely contained in the current work
- // area.
- void AdjustBoundsToBeVisibleOnMonitorContaining(
- const gfx::Rect& other_bounds,
- const gfx::Rect& saved_work_area,
- gfx::Rect* bounds) const;
-
- // Providers for persistent storage and monitor metrics.
- StateProvider* state_provider_;
- MonitorInfoProvider* monitor_info_provider_;
-
- DISALLOW_COPY_AND_ASSIGN(WindowSizer);
-};
-
-#endif // CHROME_BROWSER_WINDOW_SIZER_H_
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