aura: Fix launcher tooltips:

ui/views/bubble/bubble_border_2.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 "ui/app_list/app_list_bubble_border.h"
+#include "ui/views/bubble/bubble_border_2.h"
 
-#include "third_party/skia/include/core/SkPath.h"
-#include "third_party/skia/include/core/SkPaint.h"
-#include "third_party/skia/include/effects/SkGradientShader.h"
+#include <algorithm>  // for std::max
+
+#include "base/logging.h"
 #include "ui/gfx/canvas.h"
 #include "ui/gfx/path.h"
+#include "ui/gfx/rect.h"
+#include "ui/gfx/screen.h"
 #include "ui/gfx/skia_util.h"
 
 namespace {
 
 // Bubble border corner radius.
 const int kCornerRadius = 2;
 
 // Arrow width and height.
 const int kArrowHeight = 10;
 const int kArrowWidth = 20;
 
-// Bubble border color and width.
+const int kBorderSize = 1;
 const SkColor kBorderColor = SkColorSetARGB(0x26, 0, 0, 0);
-const int kBorderSize = 1;
+const SkColor kBackgroundColor = SK_ColorWHITE;
 
-const SkColor kSearchBoxBackground = SK_ColorWHITE;
-const SkColor kContentsBackground = SkColorSetRGB(0xFC, 0xFC, 0xFC);
-
-// Colors and sizes of top separator between searchbox and grid view.
-const SkColor kTopSeparatorColor = SkColorSetRGB(0xF0, 0xF0, 0xF0);
-const int kTopSeparatorSize = 1;
+const int kShadowOffsetX = 0;
+const int kShadowOffsetY = 5;
+const double kShadowBlur = 30;
+const SkColor kShadowColor = SkColorSetARGB(0x72, 0, 0, 0);
 
 // Builds a bubble shape for given |bounds|.
 void BuildShape(const gfx::Rect& bounds,
                 views::BubbleBorder::ArrowLocation arrow_location,
                 SkScalar arrow_offset,
                 SkScalar padding,
-                SkPath* path) {
-  const SkScalar corner_radius = SkIntToScalar(kCornerRadius);
+                SkPath* path,
+                int corner_radius_int,
+                int arrow_height_int,
+                int arrow_width_int) {
+  const SkScalar corner_radius = SkIntToScalar(corner_radius_int);
 
   const SkScalar left = SkIntToScalar(bounds.x()) + padding;
   const SkScalar top = SkIntToScalar(bounds.y()) + padding;
   const SkScalar right = SkIntToScalar(bounds.right()) - padding;
   const SkScalar bottom = SkIntToScalar(bounds.bottom()) - padding;
 
   const SkScalar center_x = SkIntToScalar((bounds.x() + bounds.right()) / 2);
   const SkScalar center_y = SkIntToScalar((bounds.y() + bounds.bottom()) / 2);
 
-  const SkScalar half_arrow_width = (SkIntToScalar(kArrowWidth) - padding) / 2;
-  const SkScalar arrow_height = SkIntToScalar(kArrowHeight) - padding;
+  const SkScalar half_arrow_width =
+      (SkIntToScalar(arrow_width_int) - padding) / 2;
+  const SkScalar arrow_height = SkIntToScalar(arrow_height_int) - padding;
 
   path->reset();
   path->incReserve(12);
 
   switch (arrow_location) {
     case views::BubbleBorder::TOP_LEFT:
     case views::BubbleBorder::TOP_RIGHT:
       path->moveTo(center_x, bottom);
       path->arcTo(right, bottom, right, center_y, corner_radius);
       path->arcTo(right, top, center_x  - half_arrow_width, top,
@@ skipping 47 matching lines @@
                          corner_radius,
                          corner_radius);
       break;
   }
 
   path->close();
 }
 
 }  // namespace
 
-namespace app_list {
+namespace views {
 
-AppListBubbleBorder::AppListBubbleBorder(views::View* app_list_view,
-                                         views::View* search_box_view)
-    : views::BubbleBorder(views::BubbleBorder::BOTTOM_RIGHT,
-                          views::BubbleBorder::NO_SHADOW),
-      app_list_view_(app_list_view),
-      search_box_view_(search_box_view) {
-  const gfx::ShadowValue kShadows[] = {
-    // Offset (0, 5), blur=30, color=0.36 black
-    gfx::ShadowValue(gfx::Point(0, 5), 30, SkColorSetARGB(0x72, 0, 0, 0)),
-  };
-  shadows_.assign(kShadows, kShadows + arraysize(kShadows));
+BubbleBorder2::BubbleBorder2(ArrowLocation arrow_location)
+    : BubbleBorder(arrow_location, views::BubbleBorder::NO_SHADOW),
+      corner_radius_(kCornerRadius),
+      border_size_(kBorderSize),
+      arrow_height_(kArrowHeight),
+      arrow_width_(kArrowWidth),
+      background_color_(kBackgroundColor),
+      border_color_(kBorderColor) {
+  SetShadow(gfx::ShadowValue(gfx::Point(kShadowOffsetX, kShadowOffsetY),
+      kShadowBlur, kShadowColor));
 }
 
-AppListBubbleBorder::~AppListBubbleBorder() {
+BubbleBorder2::~BubbleBorder2() {}
+
+gfx::Rect BubbleBorder2::ComputeOffsetAndUpdateBubbleRect(
+    gfx::Rect bubble_rect,
+    const gfx::Rect& anchor_view_rect) {
+  offset_ = gfx::Point();
+
+  gfx::Rect monitor_rect = gfx::Screen::GetDisplayNearestPoint(
+      anchor_view_rect.CenterPoint()).bounds();
+  if (monitor_rect.IsEmpty() || monitor_rect.Contains(bubble_rect))
+    return bubble_rect;
+
+  gfx::Point offset;
+
+  if (has_arrow(arrow_location())) {
+    if (is_arrow_on_horizontal(arrow_location())) {
+      if (bubble_rect.x() < monitor_rect.x())
+        offset.set_x(monitor_rect.x() - bubble_rect.x());
+      else if (bubble_rect.right() > monitor_rect.right())
+        offset.set_x(monitor_rect.right() - bubble_rect.right());
+    } else {
+      if (bubble_rect.y() < monitor_rect.y())
+        offset.set_y(monitor_rect.y() - bubble_rect.y());
+      else if (bubble_rect.bottom() > monitor_rect.bottom())
+        offset.set_y(monitor_rect.bottom() - bubble_rect.bottom());
+    }
+  }
+
+  bubble_rect.Offset(offset);
+  set_offset(offset);
+
+  return bubble_rect;
 }
 
-bool AppListBubbleBorder::ArrowAtTopOrBottom() const {
-  return arrow_location() == views::BubbleBorder::TOP_LEFT ||
-      arrow_location() == views::BubbleBorder::TOP_RIGHT ||
-      arrow_location() == views::BubbleBorder::BOTTOM_LEFT ||
-      arrow_location() == views::BubbleBorder::BOTTOM_RIGHT;
-}
-
-bool AppListBubbleBorder::ArrowOnLeftOrRight() const {
-  return arrow_location() == views::BubbleBorder::LEFT_TOP ||
-      arrow_location() == views::BubbleBorder::LEFT_BOTTOM ||
-      arrow_location() == views::BubbleBorder::RIGHT_TOP ||
-      arrow_location() == views::BubbleBorder::RIGHT_BOTTOM;
-}
-
-void AppListBubbleBorder::GetMask(const gfx::Rect& bounds,
-                                  gfx::Path* mask) const {
+void BubbleBorder2::GetMask(const gfx::Rect& bounds,
+                            gfx::Path* mask) const {
   gfx::Insets insets;
   GetInsets(&insets);
 
   gfx::Rect content_bounds(bounds);
   content_bounds.Inset(insets);
 
   BuildShape(content_bounds,
              arrow_location(),
              SkIntToScalar(GetArrowOffset()),
              SkIntToScalar(kBorderSize),
-             mask);
+             mask,
+             corner_radius_,
+             arrow_height_,
+             arrow_width_);
 }
 
-int AppListBubbleBorder::GetArrowOffset() const {
-  if (ArrowAtTopOrBottom()) {
-    // Picks x offset and moves bubble arrow in the opposite direction.
-    // i.e. If bubble bounds is moved to right (positive offset), we need to
-    // move arrow to left so that it points to the same position.
-    return -offset_.x();
-  } else if (ArrowOnLeftOrRight()) {
-    // Picks y offset and moves bubble arrow in the opposite direction.
-    return -offset_.y();
+void BubbleBorder2::SetShadow(gfx::ShadowValue shadow) {
+  shadows_.clear();
+  shadows_.push_back(shadow);
+}
+
+int BubbleBorder2::border_thickness() const {
+  return 0;
+}
+
+void BubbleBorder2::PaintBackground(gfx::Canvas* canvas,
+                                    const gfx::Rect& bounds) const {
+  canvas->FillRect(bounds, background_color_);
+}
+
+int BubbleBorder2::GetArrowOffset() const {
+  if (has_arrow(arrow_location())) {
+    if (is_arrow_on_horizontal(arrow_location())) {
+      // Picks x offset and moves bubble arrow in the opposite direction.
+      // i.e. If bubble bounds is moved to right (positive offset), we need to
+      // move arrow to left so that it points to the same position.
+      return -offset_.x();
+    } else {
+      // Picks y offset and moves bubble arrow in the opposite direction.
+      return -offset_.y();
+    }
   }
 
   // Other style does not have an arrow, so return 0.
   return 0;
 }
 
-void AppListBubbleBorder::PaintBackground(gfx::Canvas* canvas,
-                                          const gfx::Rect& bounds) const {
-  const gfx::Rect search_box_view_bounds =
-      app_list_view_->ConvertRectToWidget(search_box_view_->bounds());
-  gfx::Rect search_box_rect(bounds.x(),
-                            bounds.y(),
-                            bounds.width(),
-                            search_box_view_bounds.bottom() - bounds.y());
-
-  SkPaint paint;
-  paint.setStyle(SkPaint::kFill_Style);
-  paint.setColor(kSearchBoxBackground);
-  canvas->DrawRect(search_box_rect, paint);
-
-  gfx::Rect seperator_rect(search_box_rect);
-  seperator_rect.set_y(seperator_rect.bottom());
-  seperator_rect.set_height(kTopSeparatorSize);
-  canvas->FillRect(seperator_rect, kTopSeparatorColor);
-
-  gfx::Rect contents_rect(bounds.x(),
-                          seperator_rect.bottom(),
-                          bounds.width(),
-                          bounds.bottom() - seperator_rect.bottom());
-
-  paint.setColor(kContentsBackground);
-  canvas->DrawRect(contents_rect, paint);
-}
-
-void AppListBubbleBorder::GetInsets(gfx::Insets* insets) const {
+void BubbleBorder2::GetInsets(gfx::Insets* insets) const {
   // Negate to change from outer margin to inner padding.
   gfx::Insets shadow_padding(-gfx::ShadowValue::GetMargin(shadows_));
 
   if (arrow_location() == views::BubbleBorder::TOP_LEFT ||
       arrow_location() == views::BubbleBorder::TOP_RIGHT) {
     // Arrow at top.
-    insets->Set(shadow_padding.top() + kArrowHeight,
+    insets->Set(shadow_padding.top() + arrow_height_,

[msw, 2012/08/03 20:42:00]

nit: if the use of this arrow_height_ was incorrect as you claimed offline,
perhaps add a TODO to fix it later with some notion of why it's wrong.

[varunjain, 2012/08/03 20:54:23]

The use of arrow_height_ is correct over here since its calculating the insets
which should include the arrow size. It was incorrect in GetBounds().

                 shadow_padding.left(),
                 shadow_padding.bottom(),
                 shadow_padding.right());
   } else if (arrow_location() == views::BubbleBorder::BOTTOM_LEFT ||
       arrow_location() == views::BubbleBorder::BOTTOM_RIGHT) {
     // Arrow at bottom.
     insets->Set(shadow_padding.top(),
                 shadow_padding.left(),
-                shadow_padding.bottom() + kArrowHeight,
+                shadow_padding.bottom() + arrow_height_,
                 shadow_padding.right());
   } else if (arrow_location() == views::BubbleBorder::LEFT_TOP ||
       arrow_location() == views::BubbleBorder::LEFT_BOTTOM) {
     // Arrow on left.
     insets->Set(shadow_padding.top(),
-                shadow_padding.left() + kArrowHeight,
+                shadow_padding.left() + arrow_height_,
                 shadow_padding.bottom(),
                 shadow_padding.right());
   } else if (arrow_location() == views::BubbleBorder::RIGHT_TOP ||
       arrow_location() == views::BubbleBorder::RIGHT_BOTTOM) {
     // Arrow on right.
     insets->Set(shadow_padding.top(),
                 shadow_padding.left(),
                 shadow_padding.bottom(),
-                shadow_padding.right() + kArrowHeight);
+                shadow_padding.right() + arrow_height_);
   }
 }
 
-gfx::Rect AppListBubbleBorder::GetBounds(
-    const gfx::Rect& position_relative_to,
-    const gfx::Size& contents_size) const {
+gfx::Rect BubbleBorder2::GetBounds(const gfx::Rect& position_relative_to,
+                                   const gfx::Size& contents_size) const {
   gfx::Size border_size(contents_size);
   gfx::Insets insets;
   GetInsets(&insets);
   border_size.Enlarge(insets.width(), insets.height());
 
   // Negate to change from outer margin to inner padding.
   gfx::Insets shadow_padding(-gfx::ShadowValue::GetMargin(shadows_));
 
   // Anchor center that arrow aligns with.
   const int anchor_center_x =
@@ skipping 10 matching lines @@
   int arrow_tip_x = insets.left() + contents_size.width() / 2 +
       GetArrowOffset();
   int arrow_tip_y = insets.top() + contents_size.height() / 2 +
       GetArrowOffset() + 1;
 
   if (arrow_location() == views::BubbleBorder::TOP_LEFT ||
       arrow_location() == views::BubbleBorder::TOP_RIGHT) {
     // Arrow at top.
     return gfx::Rect(
         gfx::Point(anchor_center_x - arrow_tip_x,
-                   position_relative_to.bottom() - shadow_padding.top() -
-                       kArrowHeight),
+                   position_relative_to.bottom() - shadow_padding.top()),
         border_size);
   } else if (arrow_location() == views::BubbleBorder::BOTTOM_LEFT ||
       arrow_location() == views::BubbleBorder::BOTTOM_RIGHT) {
     // Arrow at bottom.
     return gfx::Rect(
         gfx::Point(anchor_center_x - arrow_tip_x,
                    position_relative_to.y() - border_size.height() +
-                       shadow_padding.bottom() + kArrowHeight),
+                       shadow_padding.bottom()),
         border_size);
   } else if (arrow_location() == views::BubbleBorder::LEFT_TOP ||
       arrow_location() == views::BubbleBorder::LEFT_BOTTOM) {
     // Arrow on left.
     return gfx::Rect(
-        gfx::Point(position_relative_to.right() - shadow_padding.left() -
-                       kArrowHeight,
+        gfx::Point(position_relative_to.right() - shadow_padding.left(),
                    anchor_center_y - arrow_tip_y),
         border_size);
   } else if (arrow_location() == views::BubbleBorder::RIGHT_TOP ||
       arrow_location() == views::BubbleBorder::RIGHT_BOTTOM) {
     // Arrow on right.
     return gfx::Rect(
         gfx::Point(position_relative_to.x() - border_size.width() +
-                       shadow_padding.right() + kArrowHeight,
+                       shadow_padding.right(),
                    anchor_center_y - arrow_tip_y),
         border_size);
   }
 
   // No arrow bubble, center align with anchor.
   return position_relative_to.Center(border_size);
 }
 
-void AppListBubbleBorder::Paint(const views::View& view,
-                                gfx::Canvas* canvas) const {
+void BubbleBorder2::GetInsetsForArrowLocation(gfx::Insets* insets,
+                                              ArrowLocation arrow_loc) const {
+  int top = border_size_;
+  int bottom = border_size_;
+  int left = border_size_;
+  int right = border_size_;
+  switch (arrow_loc) {
+    case TOP_LEFT:
+    case TOP_RIGHT:
+      top = std::max(top, arrow_height_);
+      break;
+
+    case BOTTOM_LEFT:
+    case BOTTOM_RIGHT:
+      bottom = std::max(bottom, arrow_height_);
+      break;
+
+    case LEFT_TOP:
+    case LEFT_BOTTOM:
+      left = std::max(left, arrow_height_);
+      break;
+
+    case RIGHT_TOP:
+    case RIGHT_BOTTOM:
+      right = std::max(right, arrow_height_);
+      break;
+
+    case NONE:
+    case FLOAT:
+      // Nothing to do.
+      break;
+  }
+  insets->Set(top, left, bottom, right);
+}
+
+void BubbleBorder2::Paint(const views::View& view, gfx::Canvas* canvas) const {
   gfx::Insets insets;
   GetInsets(&insets);
 
   gfx::Rect content_bounds = view.bounds();
   content_bounds.Inset(insets);
 
   SkPath path;
   // Pads with 0.5 pixel since anti alias is used.
   BuildShape(content_bounds,
              arrow_location(),
              SkIntToScalar(GetArrowOffset()),
              SkDoubleToScalar(0.5),
-             &path);
+             &path,
+             corner_radius_,
+             arrow_height_,
+             arrow_width_);
 
   // Draw border and shadow. Note fill is needed to generate enough shadow.
   SkPaint paint;
   paint.setAntiAlias(true);
   paint.setStyle(SkPaint::kStrokeAndFill_Style);
-  paint.setStrokeWidth(SkIntToScalar(kBorderSize));
-  paint.setColor(kBorderColor);
+  paint.setStrokeWidth(SkIntToScalar(border_size_));
+  paint.setColor(border_color_);
   SkSafeUnref(paint.setLooper(gfx::CreateShadowDrawLooper(shadows_)));
   canvas->DrawPath(path, paint);
 
-  // Pads with kBoprderSize pixels to leave space for border lines.
+  // Pads with |border_size_| pixels to leave space for border lines.
   BuildShape(content_bounds,
              arrow_location(),
              SkIntToScalar(GetArrowOffset()),
-             SkIntToScalar(kBorderSize),
-             &path);
+             SkIntToScalar(border_size_),
+             &path,
+             corner_radius_,
+             arrow_height_,
+             arrow_width_);
   canvas->Save();
   canvas->ClipPath(path);
 
   // Use full bounds so that arrow is also painted.
   const gfx::Rect& bounds = view.bounds();
   PaintBackground(canvas, bounds);
 
   canvas->Restore();
 }
 
-}  // namespace app_list
+}  // namespace views