Add overflow indicator count on Windows.

chrome/browser/ui/panels/panel_overflow_browsertest.cc

Index: chrome/browser/ui/panels/panel_overflow_browsertest.cc
diff --git a/chrome/browser/ui/panels/panel_overflow_browsertest.cc b/chrome/browser/ui/panels/panel_overflow_browsertest.cc
index ed6b953fb3be791564eca575c3e6fdcfbb9f83ab..ecd8daa07e1d38048034390e54e02ea79f979b4f 100644
--- a/chrome/browser/ui/panels/panel_overflow_browsertest.cc
+++ b/chrome/browser/ui/panels/panel_overflow_browsertest.cc
@@ -8,6 +8,7 @@
 #include "chrome/browser/ui/panels/native_panel.h"
 #include "chrome/browser/ui/panels/panel.h"
 #include "chrome/browser/ui/panels/panel_manager.h"
+#include "chrome/browser/ui/panels/panel_overflow_indicator.h"
 #include "chrome/browser/ui/panels/panel_overflow_strip.h"
 #include "chrome/browser/ui/panels/panel_settings_menu_model.h"
 #include "chrome/browser/ui/panels/panel_strip.h"
@@ -18,8 +19,9 @@
 
 namespace {
 
-//  We override the default value for testing purpose.
-const int kMaxVisibleOverflowForTesting = 3;
+// We override the default value for testing purpose.
+const int kMaxVisibleOverflowPanelsForTesting = 3;
+const int kMaxVisibleOverflowPanelsOnHoverForTesting = 6;
 
 // Encapsulates all the info we need to verify if a panel behaves as expected
 // when we do the overflow testing.
@@ -86,8 +88,14 @@ class PanelOverflowBrowserTest : public BasePanelBrowserTest {
   virtual void SetUpOnMainThread() OVERRIDE {
     BasePanelBrowserTest::SetUpOnMainThread();
 
-    PanelManager::GetInstance()->panel_overflow_strip()->
-        set_max_visible_panels(kMaxVisibleOverflowForTesting);
+    PanelManager* panel_manager = PanelManager::GetInstance();
+    panel_manager->panel_overflow_strip()->set_max_visible_panels(
+        kMaxVisibleOverflowPanelsForTesting);
+    panel_manager->panel_overflow_strip()->set_max_visible_panels_on_hover(
+        kMaxVisibleOverflowPanelsOnHoverForTesting);
+
+    PanelMouseWatcher* mouse_watcher = new TestPanelMouseWatcher();
+    panel_manager->SetMouseWatcherForTesting(mouse_watcher);
 
     // All the overflow tests assume 800x600 work area. Do the check now.
     DCHECK(PanelManager::GetInstance()->work_area().width() == 800);
@@ -180,6 +188,8 @@ class PanelOverflowBrowserTest : public BasePanelBrowserTest {
 #define MAYBE_ActivateOverflowPanels ActivateOverflowPanels
 #define MAYBE_HoverOverOverflowArea HoverOverOverflowArea
 #define MAYBE_ResizePanel ResizePanel
+#define MAYBE_OverflowIndicatorCount OverflowIndicatorCount
+#define MAYBE_DrawOverflowAttention DrawOverflowAttention
 #else
 #define MAYBE_CheckPanelProperties DISABLED_CheckPanelProperties
 #define MAYBE_UpdateDraggableStatus DISABLED_UpdateDraggableStatus
@@ -192,6 +202,8 @@ class PanelOverflowBrowserTest : public BasePanelBrowserTest {
 #define MAYBE_ActivateOverflowPanels DISABLED_ActivateOverflowPanels
 #define MAYBE_HoverOverOverflowArea DISABLED_HoverOverOverflowArea
 #define MAYBE_ResizePanel DISABLED_ResizePanel
+#define MAYBE_OverflowIndicatorCount DISABLED_OverflowIndicatorCount
+#define MAYBE_DrawOverflowAttention DISABLED_DrawOverflowAttention
 #endif
 
 IN_PROC_BROWSER_TEST_F(PanelOverflowBrowserTest, MAYBE_CheckPanelProperties) {
@@ -246,20 +258,46 @@ IN_PROC_BROWSER_TEST_F(PanelOverflowBrowserTest, MAYBE_CreateOverflowPanels) {
   PanelOverflowStrip* panel_overflow_strip =
       panel_manager->panel_overflow_strip();
 
-  const int panel_widths[] = {
-      250, 260, 200,  // normal
-      255, 220        // overflow
-  };
-  CreateOverflowPanels(3, 2, panel_widths);
+  EXPECT_EQ(0, panel_manager->num_panels());
+  EXPECT_EQ(0, panel_strip->num_panels());
+  EXPECT_EQ(0, panel_overflow_strip->num_panels());
+  EXPECT_FALSE(panel_overflow_strip->overflow_indicator());
 
-  std::vector<Panel*> panels = panel_manager->panels();
-  ASSERT_EQ(5u, panels.size());
+  // Create 3 normal panels.
+  Panel* panel0 = CreatePanelWithBounds("Panel0", gfx::Rect(0, 0, 250, 200));
+  Panel* panel1 = CreatePanelWithBounds("Panel1", gfx::Rect(0, 0, 260, 200));
+  Panel* panel2 = CreatePanelWithBounds("Panel2", gfx::Rect(0, 0, 200, 200));
+
+  EXPECT_EQ(3, panel_manager->num_panels());
+  EXPECT_EQ(3, panel_strip->num_panels());
+  EXPECT_EQ(0, panel_overflow_strip->num_panels());
+  EXPECT_FALSE(panel_overflow_strip->overflow_indicator());
+  EXPECT_EQ(Panel::EXPANDED, panel0->expansion_state());
+  EXPECT_EQ(Panel::EXPANDED, panel1->expansion_state());
+  EXPECT_EQ(Panel::EXPANDED, panel2->expansion_state());
+
+  // Create 1 overflow panel.
+  CreatePanelParams params(
+      "Panel3", gfx::Rect(0, 0, 255, 200), SHOW_AS_INACTIVE);
+  Panel* panel3 = CreatePanelWithParams(params);
+  WaitForExpansionStateChanged(panel3, Panel::IN_OVERFLOW);
+
+  EXPECT_EQ(4, panel_manager->num_panels());
+  EXPECT_EQ(3, panel_strip->num_panels());
+  EXPECT_EQ(1, panel_overflow_strip->num_panels());
+  EXPECT_FALSE(panel_overflow_strip->overflow_indicator());
+  EXPECT_TRUE(IsPanelVisible(panel3));
+
+  // Create 1 more overflow panel.
+  params.name = "Panel4";
+  Panel* panel4 = CreatePanelWithParams(params);
+  WaitForExpansionStateChanged(panel4, Panel::IN_OVERFLOW);
+
+  EXPECT_EQ(5, panel_manager->num_panels());
   EXPECT_EQ(3, panel_strip->num_panels());
   EXPECT_EQ(2, panel_overflow_strip->num_panels());
-  EXPECT_EQ(Panel::IN_OVERFLOW, panels[3]->expansion_state());
-  EXPECT_TRUE(IsPanelVisible(panels[3]));
-  EXPECT_EQ(Panel::IN_OVERFLOW, panels[4]->expansion_state());
-  EXPECT_TRUE(IsPanelVisible(panels[4]));
+  EXPECT_FALSE(panel_overflow_strip->overflow_indicator());
+  EXPECT_TRUE(IsPanelVisible(panel4));
 
   PanelManager::GetInstance()->RemoveAll();
 }
@@ -282,6 +320,7 @@ IN_PROC_BROWSER_TEST_F(PanelOverflowBrowserTest,
   ASSERT_EQ(8u, panels.size());
   EXPECT_EQ(3, panel_strip->num_panels());
   EXPECT_EQ(5, panel_overflow_strip->num_panels());
+  EXPECT_EQ(2, panel_overflow_strip->overflow_indicator()->GetCount());
   EXPECT_EQ(Panel::IN_OVERFLOW, panels[3]->expansion_state());
   EXPECT_TRUE(IsPanelVisible(panels[3]));
   EXPECT_EQ(Panel::IN_OVERFLOW, panels[4]->expansion_state());
@@ -723,8 +762,6 @@ IN_PROC_BROWSER_TEST_F(PanelOverflowBrowserTest, MAYBE_ActivateOverflowPanels) {
 
 IN_PROC_BROWSER_TEST_F(PanelOverflowBrowserTest, MAYBE_HoverOverOverflowArea) {
   PanelManager* panel_manager = PanelManager::GetInstance();
-  PanelMouseWatcher* mouse_watcher = new TestPanelMouseWatcher();
-  panel_manager->SetMouseWatcherForTesting(mouse_watcher);
   PanelOverflowStrip* panel_overflow_strip =
       panel_manager->panel_overflow_strip();
   int iconified_width = panel_overflow_strip->current_display_width();
@@ -924,3 +961,215 @@ IN_PROC_BROWSER_TEST_F(PanelOverflowBrowserTest, MAYBE_ResizePanel) {
   panel4->Close();
   panel5->Close();
 }
+
+IN_PROC_BROWSER_TEST_F(PanelOverflowBrowserTest, MAYBE_OverflowIndicatorCount) {
+  PanelManager* panel_manager = PanelManager::GetInstance();
+  PanelOverflowStrip* overflow_strip = panel_manager->panel_overflow_strip();
+
+  // Create normal and overflow panels.
+  //   normal:               P0, P1, P2
+  //   overflow:             P3, P4, P5
+  const int panel_widths[] = {
+      250, 250, 210,  // normal
+      250, 250, 260   // overflow
+  };
+  std::vector<Panel*> panels = CreateOverflowPanels(3, 3, panel_widths);
+  EXPECT_EQ(3, overflow_strip->num_panels());
+  EXPECT_FALSE(overflow_strip->overflow_indicator());
+
+  // Create 5 overflow-on-overflow panels.
+  //   normal:               P0, P1, P2
+  //   overflow:             P3, P4, P5, (P6, P7, P8, P9, P10)
+  // The panels enclosed in parentheses are hidden.
+  int num_existing_panels = panel_manager->num_panels();
+  for (int i = 0; i < 5; ++i) {
+    CreatePanelParams params(
+        MakePanelName(num_existing_panels + i),
+        gfx::Rect(0, 0, 250, 200),
+        SHOW_AS_INACTIVE);
+    Panel* panel = CreatePanelWithParams(params);
+    WaitForExpansionStateChanged(panel, Panel::IN_OVERFLOW);
+    EXPECT_EQ(i + 1, overflow_strip->overflow_indicator()->GetCount());
+    panels.push_back(panel);
+  }
+
+  // Expand the overflow area by moving mouse over it.
+  // Expect the overflow indicator count gets updated.
+  //   normal:               P0, P1, P2
+  //   overflow:             P3, P4, P5, P6, P7, P8, (P9, P10)
+  MoveMouseAndWaitForOverflowAnimationEnded(panels[3]->GetBounds().origin());
+  EXPECT_TRUE(IsPanelVisible(panels[6]));
+  EXPECT_TRUE(IsPanelVisible(panels[7]));
+  EXPECT_TRUE(IsPanelVisible(panels[8]));
+  EXPECT_FALSE(IsPanelVisible(panels[9]));
+  EXPECT_FALSE(IsPanelVisible(panels[10]));
+  EXPECT_EQ(2, overflow_strip->overflow_indicator()->GetCount());
+
+  // Close an overflow panel that makes one overflow-on-overflow panel become
+  // visible. Expect the overflow indicator count gets decreased by 1.
+  //   normal:               P0, P1, P2
+  //   overflow:             P4, P5, P6, P7, P8, P9, (P10)
+  CloseWindowAndWait(panels[3]->browser());
+  EXPECT_TRUE(IsPanelVisible(panels[6]));
+  EXPECT_TRUE(IsPanelVisible(panels[7]));
+  EXPECT_TRUE(IsPanelVisible(panels[8]));
+  EXPECT_TRUE(IsPanelVisible(panels[9]));
+  EXPECT_FALSE(IsPanelVisible(panels[10]));
+  EXPECT_EQ(1, overflow_strip->overflow_indicator()->GetCount());
+
+  // Shrink the overflow area by stopping hovering the mouse over the overflow
+  // area. Expect the overflow indicator count gets updated.
+  //   normal:               P0, P1, P2
+  //   overflow:             P4, P5, P6, (P7, P8, P9, P10)
+  MoveMouseAndWaitForOverflowAnimationEnded(gfx::Point(
+      panels[4]->GetBounds().right() + 5, panels[4]->GetBounds().y()));
+  EXPECT_TRUE(IsPanelVisible(panels[6]));
+  EXPECT_FALSE(IsPanelVisible(panels[7]));
+  EXPECT_FALSE(IsPanelVisible(panels[8]));
+  EXPECT_FALSE(IsPanelVisible(panels[9]));
+  EXPECT_FALSE(IsPanelVisible(panels[10]));
+  EXPECT_EQ(4, overflow_strip->overflow_indicator()->GetCount());
+
+  // Close an overflow panel.
+  // Expect the overflow indicator count gets decreased by 1.
+  //   normal:               P0, P1, P2
+  //   overflow:             P5, P6, P7, (P8, P9, P10)
+  CloseWindowAndWait(panels[4]->browser());
+  EXPECT_TRUE(IsPanelVisible(panels[6]));
+  EXPECT_TRUE(IsPanelVisible(panels[7]));
+  EXPECT_FALSE(IsPanelVisible(panels[8]));
+  EXPECT_FALSE(IsPanelVisible(panels[9]));
+  EXPECT_FALSE(IsPanelVisible(panels[10]));
+  EXPECT_EQ(3, overflow_strip->overflow_indicator()->GetCount());
+
+  // Activating a big overflow panel will cause 2 normal panels to move to the
+  // oevrflow area and also get the top visible overflow panel bumped to the
+  // overflow-on-overflow.
+  // Expect the overflow indicator count gets increased by 1.
+  //   normal:               P0, P5
+  //   overflow:             P1, P2, P6, (P7, P8, P9, P10)
+  panels[5]->Activate();
+  WaitForPanelActiveState(panels[5], SHOW_AS_ACTIVE);
+  WaitForExpansionStateChanged(panels[5], Panel::EXPANDED);
+  EXPECT_TRUE(IsPanelVisible(panels[6]));
+  EXPECT_FALSE(IsPanelVisible(panels[7]));
+  EXPECT_FALSE(IsPanelVisible(panels[8]));
+  EXPECT_FALSE(IsPanelVisible(panels[9]));
+  EXPECT_FALSE(IsPanelVisible(panels[10]));
+  EXPECT_EQ(4, overflow_strip->overflow_indicator()->GetCount());
+
+  panel_manager->RemoveAll();
+}
+
+IN_PROC_BROWSER_TEST_F(PanelOverflowBrowserTest, MAYBE_DrawOverflowAttention) {
+  PanelManager* panel_manager = PanelManager::GetInstance();
+  PanelStrip* panel_strip = panel_manager->panel_strip();
+  PanelOverflowStrip* overflow_strip = panel_manager->panel_overflow_strip();
+
+  // Create normal and overflow panels.
+  //   normal:               P0, P1, P2, P3
+  //   overflow:             P4, P5, P6, (P7, P8, P9, P10, P11)
+  // The panels enclosed in parentheses are hidden.
+  const int panel_widths[] = {
+      100, 210, 210, 210,  // normal
+      210, 260, 210,       // overflow
+      210, 210, 210,       // overflow-on-overflow on shrunk
+      210, 210             // overflow-on-overflow on expanded
+  };
+  std::vector<Panel*> panels = CreateOverflowPanels(4, 8, panel_widths);
+  EXPECT_EQ(4, panel_strip->num_panels());
+  EXPECT_EQ(8, overflow_strip->num_panels());
+  PanelOverflowIndicator* overflow_indicator =
+      overflow_strip->overflow_indicator();
+
+  // Draw attention for a visible overflow panel.
+  // Expect no impact to the overflow indicator.
+  //   normal:               P0, P1, P2, P3
+  //   overflow:             P4, *P5, P6, (P7, P8, P9, P10, P11)
+  EXPECT_FALSE(panels[5]->IsDrawingAttention());
+  panels[5]->FlashFrame();
+  EXPECT_TRUE(panels[5]->IsDrawingAttention());
+  EXPECT_FALSE(overflow_indicator->IsDrawingAttention());
+
+  // Activating this overflow panel will clear its attention.
+  // Expect no impact to the overflow indicator.
+  //   normal:               P0, P1, P2, P5
+  //   overflow:             P3, P4, P6, (P7, P8, P9, P10, P11)
+  panels[5]->Activate();
+  WaitForPanelActiveState(panels[5], SHOW_AS_ACTIVE);
+  EXPECT_FALSE(panels[5]->IsDrawingAttention());
+  EXPECT_FALSE(overflow_indicator->IsDrawingAttention());
+
+  // Draw attention for an overflow-on-overflow panel.
+  // Expect the overflow indicator is showing attention.
+  //   normal:               P0, P1, P2, P5
+  //   overflow:             P3, P4, P6, (P7, *P8, P9, P10, P11)
+  EXPECT_FALSE(panels[8]->IsDrawingAttention());
+  panels[8]->FlashFrame();
+  EXPECT_TRUE(panels[8]->IsDrawingAttention());
+  EXPECT_TRUE(overflow_indicator->IsDrawingAttention());
+
+  // Draw attention for another overflow-on-overflow panel.
+  // Expect the overflow indicator is still showing attention.
+  //   normal:               P0, P1, P2, P5
+  //   overflow:             P3, P4, P6, (P7, *P8, P9, *P10, P11)
+  EXPECT_FALSE(panels[10]->IsDrawingAttention());
+  panels[10]->FlashFrame();
+  EXPECT_TRUE(panels[10]->IsDrawingAttention());
+  EXPECT_TRUE(overflow_indicator->IsDrawingAttention());
+
+  // Stop drawing attention for an overflow-on-overflow panel by activating it.
+  // Expect the overflow indicator is still showing attention.
+  //   normal:               P0, P1, P2, P8
+  //   overflow:             P5, P3, P4, (P6, P7, P9, *P10, P11)
+  panels[8]->Activate();
+  WaitForPanelActiveState(panels[8], SHOW_AS_ACTIVE);
+  EXPECT_FALSE(panels[8]->IsDrawingAttention());
+  EXPECT_TRUE(overflow_indicator->IsDrawingAttention());
+
+  // Stop drawing attention for another overflow-on-overflow panel by activating
+  // it. Expect the overflow indicator is not showing attention.
+  //   normal:               P0, P1, P2, P10
+  //   overflow:             P8, P5, P3, (P4, P6, P7, P9, P11)
+  panels[10]->Activate();
+  WaitForPanelActiveState(panels[10], SHOW_AS_ACTIVE);
+  EXPECT_FALSE(panels[10]->IsDrawingAttention());
+  EXPECT_FALSE(overflow_indicator->IsDrawingAttention());
+
+  // Draw attention for the top overflow panel.
+  // Expect no impact to the overflow indicator.
+  //   normal:               P0, P1, P2, P10
+  //   overflow:             P8, P5, *P3, (P4, P6, P7, P9, P11)
+  EXPECT_TRUE(IsPanelVisible(panels[3]));
+  EXPECT_FALSE(panels[3]->IsDrawingAttention());
+  panels[3]->FlashFrame();
+  EXPECT_TRUE(panels[3]->IsDrawingAttention());
+  EXPECT_FALSE(overflow_indicator->IsDrawingAttention());
+
+  // Activating a big overflow panel will cause 2 normal panels to move to the
+  // overflow area and also get the top visible overflow panel bumped to the
+  // overflow-on-overflow.
+  // Expect the overflow indicator is showing attention.
+  //   normal:               P0, P1, P5
+  //   overflow:             P2, P10, P8, (*P3, P4, P6, P7, P9, P11)
+  panels[5]->Activate();
+  WaitForPanelActiveState(panels[5], SHOW_AS_ACTIVE);
+  WaitForExpansionStateChanged(panels[5], Panel::EXPANDED);
+  EXPECT_EQ(3, panel_strip->num_panels());
+  EXPECT_EQ(9, overflow_strip->num_panels());
+  EXPECT_FALSE(IsPanelVisible(panels[3]));
+  EXPECT_TRUE(panels[3]->IsDrawingAttention());
+  EXPECT_TRUE(overflow_indicator->IsDrawingAttention());
+
+  // Close an overflow panel that would move the first oveflow-on-overflow panel
+  // to become visible. Expect the overflow indicator is not showing attention.
+  //   normal:               P0, P1, P5
+  //   overflow:             P2, P10, P3, (P4, P6, P7, P9, P11)
+  CloseWindowAndWait(panels[8]->browser());
+  EXPECT_EQ(3, panel_strip->num_panels());
+  EXPECT_EQ(8, overflow_strip->num_panels());
+  EXPECT_TRUE(panels[3]->IsDrawingAttention());
+  EXPECT_FALSE(overflow_indicator->IsDrawingAttention());
+
+  panel_manager->RemoveAll();
+}