Combined window positioning and show state determiniation in the WindowSizer

chrome/browser/ui/window_sizer/window_sizer_common_unittest.cc

+// 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.
+
+#include "chrome/browser/ui/window_sizer/window_sizer_common_unittest.h"
+
+#include "ash/wm/window_resizer.h"
+#include "base/compiler_specific.h"
+#include "chrome/browser/ui/browser.h"
+#include "chrome/common/chrome_switches.h"
+#include "chrome/test/base/testing_profile.h"
+#include "testing/gtest/include/gtest/gtest.h"
+#include "third_party/WebKit/Source/WebKit/chromium/public/WebKit.h"
+
+TestMonitorInfoProvider::TestMonitorInfoProvider() {};
+
+TestMonitorInfoProvider::~TestMonitorInfoProvider() {};
+
+void TestMonitorInfoProvider::AddMonitor(const gfx::Rect& bounds,
+                                         const gfx::Rect& work_area) {
+  DCHECK(bounds.Contains(work_area));
+  monitor_bounds_.push_back(bounds);
+  work_areas_.push_back(work_area);
+}
+
+// Overridden from WindowSizer::MonitorInfoProvider:
+gfx::Rect TestMonitorInfoProvider::GetPrimaryDisplayWorkArea() const {
+  return work_areas_[0];
+}
+
+gfx::Rect TestMonitorInfoProvider::GetPrimaryDisplayBounds() const {
+  return monitor_bounds_[0];
+}
+
+gfx::Rect TestMonitorInfoProvider::GetMonitorWorkAreaMatching(
+    const gfx::Rect& match_rect) const {
+  return work_areas_[GetMonitorIndexMatchingBounds(match_rect)];
+}
+
+size_t TestMonitorInfoProvider::GetMonitorIndexMatchingBounds(
+    const gfx::Rect& match_rect) const {
+  int max_area = 0;
+  size_t max_area_index = 0;
+  // Loop through all the monitors, finding the one that intersects the
+  // largest area of the supplied match rect.
+  for (size_t i = 0; i < work_areas_.size(); ++i) {
+    gfx::Rect overlap(match_rect.Intersect(work_areas_[i]));
+    int area = overlap.width() * overlap.height();
+    if (area > max_area) {
+      max_area = area;
+      max_area_index = i;
+    }
+  }
+  return max_area_index;
+}
+
+TestStateProvider::TestStateProvider():
+    has_persistent_data_(false),
+    persistent_show_state_(ui::SHOW_STATE_DEFAULT),
+    has_last_active_data_(false),
+    last_active_show_state_(ui::SHOW_STATE_DEFAULT) {
+}
+
+void TestStateProvider::SetPersistentState(const gfx::Rect& bounds,
+                                           const gfx::Rect& work_area,
+                                           ui::WindowShowState show_state,
+                                           bool has_persistent_data) {
+  persistent_bounds_ = bounds;
+  persistent_work_area_ = work_area;
+  persistent_show_state_ = show_state;
+  has_persistent_data_ = has_persistent_data;
+}
+
+void TestStateProvider::SetLastActiveState(const gfx::Rect& bounds,
+                                           ui::WindowShowState show_state,
+                                           bool has_last_active_data) {
+  last_active_bounds_ = bounds;
+  last_active_show_state_ = show_state;
+  has_last_active_data_ = has_last_active_data;
+}
+
+bool TestStateProvider::GetPersistentState(
+    gfx::Rect* bounds,
+    gfx::Rect* saved_work_area,
+    ui::WindowShowState* show_state) const {
+  DCHECK(show_state);
+  *bounds = persistent_bounds_;
+  *saved_work_area = persistent_work_area_;
+  if (*show_state == ui::SHOW_STATE_DEFAULT)
+    *show_state = persistent_show_state_;
+  return has_persistent_data_;
+}
+
+bool TestStateProvider::GetLastActiveWindowState(
+    gfx::Rect* bounds,
+    ui::WindowShowState* show_state) const {
+  DCHECK(show_state);
+  *bounds = last_active_bounds_;
+  if (*show_state == ui::SHOW_STATE_DEFAULT)
+    *show_state = last_active_show_state_;
+  return has_last_active_data_;
+}
+
+int kWindowTilePixels = WindowSizer::kWindowTilePixels;
+
+// The window sizer commonly used test functions.
+void GetWindowBoundsAndShowState(
+    const gfx::Rect& monitor1_bounds,
+    const gfx::Rect& monitor1_work_area,
+    const gfx::Rect& monitor2_bounds,
+    const gfx::Rect& bounds,
+    const gfx::Rect& work_area,
+    ui::WindowShowState show_state_persisted,
+    ui::WindowShowState show_state_last,
+    Source source,
+    const Browser* browser,
+    const gfx::Rect& passed_in,
+    gfx::Rect* out_bounds,
+    ui::WindowShowState* out_show_state) {
+  DCHECK(out_show_state);
+  TestMonitorInfoProvider* mip = new TestMonitorInfoProvider;
+  mip->AddMonitor(monitor1_bounds, monitor1_work_area);
+  if (!monitor2_bounds.IsEmpty())
+    mip->AddMonitor(monitor2_bounds, monitor2_bounds);
+  TestStateProvider* sp = new TestStateProvider;
+  if (source == PERSISTED || source == BOTH)
+    sp->SetPersistentState(bounds, work_area, show_state_persisted, true);
+  if (source == LAST_ACTIVE || source == BOTH)
+    sp->SetLastActiveState(bounds, show_state_last, true);
+
+  WindowSizer sizer(sp, mip, browser);
+  sizer.DetermineWindowBoundsAndShowState(passed_in,
+                                          out_bounds,
+                                          out_show_state);
+}
+
+void GetWindowBounds(const gfx::Rect& monitor1_bounds,
+                            const gfx::Rect& monitor1_work_area,
+                            const gfx::Rect& monitor2_bounds,
+                            const gfx::Rect& bounds,
+                            const gfx::Rect& work_area,
+                            Source source,
+                            gfx::Rect* out_bounds,
+                            const Browser* browser,
+                            const gfx::Rect& passed_in) {
+  ui::WindowShowState out_show_state = ui::SHOW_STATE_DEFAULT;
+  GetWindowBoundsAndShowState(
+      monitor1_bounds, monitor1_work_area, monitor2_bounds, bounds, work_area,
+      ui::SHOW_STATE_DEFAULT, ui::SHOW_STATE_DEFAULT, source, browser,
+      passed_in, out_bounds, &out_show_state);
+}
+
+ui::WindowShowState GetWindowShowState(
+    ui::WindowShowState show_state_persisted,
+    ui::WindowShowState show_state_last,
+    Source source,
+    const Browser* browser) {
+  gfx::Rect bounds = tentwentyfour;
+  gfx::Rect work_area = tentwentyfour;
+  TestMonitorInfoProvider* mip = new TestMonitorInfoProvider;
+  mip->AddMonitor(tentwentyfour, tentwentyfour);
+  TestStateProvider* sp = new TestStateProvider;
+  if (source == PERSISTED || source == BOTH)
+    sp->SetPersistentState(bounds, work_area, show_state_persisted, true);
+  if (source == LAST_ACTIVE || source == BOTH)
+    sp->SetLastActiveState(bounds, show_state_last, true);
+
+  WindowSizer sizer(sp, mip, browser);
+
+  ui::WindowShowState out_show_state = ui::SHOW_STATE_DEFAULT;
+  gfx::Rect out_bounds;
+  sizer.DetermineWindowBoundsAndShowState(
+      gfx::Rect(),
+      &out_bounds,
+      &out_show_state);
+  return out_show_state;
+}