15821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Copyright (c) 2012 The Chromium Authors. All rights reserved. 25821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Use of this source code is governed by a BSD-style license that can be 35821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// found in the LICENSE file. 45821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 55821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "ui/views/controls/glow_hover_controller.h" 65821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 75821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "third_party/skia/include/effects/SkGradientShader.h" 85821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "ui/gfx/canvas.h" 95821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "ui/gfx/image/image_skia.h" 105821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "ui/gfx/image/image_skia_operations.h" 115821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "ui/views/view.h" 125821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 135821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)namespace views { 145821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 155821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Amount to scale the opacity. 162a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)static const double kTrackOpacityScale = 0.5; 172a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)static const double kHighlightOpacityScale = 1.0; 185821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 195821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// How long the hover state takes. 202a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)static const int kTrackHoverDurationMs = 400; 215821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 225821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)GlowHoverController::GlowHoverController(views::View* view) 235821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) : view_(view), 24c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) animation_(this), 252a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) opacity_scale_(kTrackOpacityScale) { 265821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) animation_.set_delegate(this); 275821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 285821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 295821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)GlowHoverController::~GlowHoverController() { 305821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 315821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 325821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void GlowHoverController::SetAnimationContainer( 33d0247b1b59f9c528cb6df88b4f2b9afaf80d181eTorne (Richard Coles) gfx::AnimationContainer* container) { 345821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) animation_.SetContainer(container); 355821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 365821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 375821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void GlowHoverController::SetLocation(const gfx::Point& location) { 385821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) location_ = location; 395821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (ShouldDraw()) 405821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) view_->SchedulePaint(); 415821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 425821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 432a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)void GlowHoverController::Show(Style style) { 442a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) switch (style) { 452a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) case SUBTLE: 462a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) opacity_scale_ = kTrackOpacityScale; 472a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) animation_.SetSlideDuration(kTrackHoverDurationMs); 48d0247b1b59f9c528cb6df88b4f2b9afaf80d181eTorne (Richard Coles) animation_.SetTweenType(gfx::Tween::EASE_OUT); 492a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) animation_.Show(); 502a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) break; 512a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) case PRONOUNCED: 522a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) opacity_scale_ = kHighlightOpacityScale; 532a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // Force the end state to show immediately. 542a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) animation_.Show(); 552a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) animation_.End(); 562a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) break; 572a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) } 585821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 595821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 605821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void GlowHoverController::Hide() { 61d0247b1b59f9c528cb6df88b4f2b9afaf80d181eTorne (Richard Coles) animation_.SetTweenType(gfx::Tween::EASE_IN); 625821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) animation_.Hide(); 635821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 645821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 655821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void GlowHoverController::HideImmediately() { 665821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (ShouldDraw()) 675821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) view_->SchedulePaint(); 685821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) animation_.Reset(); 695821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 705821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 715821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)double GlowHoverController::GetAnimationValue() const { 725821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return animation_.GetCurrentValue(); 735821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 745821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 755821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)bool GlowHoverController::ShouldDraw() const { 765821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return animation_.IsShowing() || animation_.is_animating(); 775821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 785821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 795821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void GlowHoverController::Draw(gfx::Canvas* canvas, 805821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const gfx::ImageSkia& mask_image) const { 815821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (!ShouldDraw()) 825821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return; 835821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 845821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Draw a radial gradient to hover_canvas. 855821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) gfx::Canvas hover_canvas(gfx::Size(mask_image.width(), mask_image.height()), 8668043e1e95eeb07d5cae7aca370b26518b0867d6Torne (Richard Coles) canvas->image_scale(), 875821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) false); 885821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 895821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Draw a radial gradient to hover_canvas. 905821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int radius = view_->width() / 3; 915821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 925821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) SkPoint center_point; 935821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) center_point.iset(location_.x(), location_.y()); 945821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) SkColor colors[2]; 955821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int hover_alpha = 962a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) static_cast<int>(255 * opacity_scale_ * animation_.GetCurrentValue()); 975821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) colors[0] = SkColorSetARGB(hover_alpha, 255, 255, 255); 985821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) colors[1] = SkColorSetARGB(0, 255, 255, 255); 992a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) skia::RefPtr<SkShader> shader = skia::AdoptRef( 1002a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) SkGradientShader::CreateRadial( 1012a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) center_point, SkIntToScalar(radius), colors, NULL, 2, 1022a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) SkShader::kClamp_TileMode)); 1035821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Shader can end up null when radius = 0. 1045821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // If so, this results in default full tab glow behavior. 1055821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (shader) { 1065821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) SkPaint paint; 1075821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) paint.setStyle(SkPaint::kFill_Style); 1085821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) paint.setAntiAlias(true); 1092a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) paint.setShader(shader.get()); 1105821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) hover_canvas.DrawRect(gfx::Rect(location_.x() - radius, 1115821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) location_.y() - radius, 1125821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) radius * 2, radius * 2), paint); 1135821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 1145821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) gfx::ImageSkia result = gfx::ImageSkiaOperations::CreateMaskedImage( 1155821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) gfx::ImageSkia(hover_canvas.ExtractImageRep()), mask_image); 1165821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) canvas->DrawImageInt(result, (view_->width() - mask_image.width()) / 2, 1175821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) (view_->height() - mask_image.height()) / 2); 1185821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 1195821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 120d0247b1b59f9c528cb6df88b4f2b9afaf80d181eTorne (Richard Coles)void GlowHoverController::AnimationEnded(const gfx::Animation* animation) { 1215821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) view_->SchedulePaint(); 1225821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 1235821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 124d0247b1b59f9c528cb6df88b4f2b9afaf80d181eTorne (Richard Coles)void GlowHoverController::AnimationProgressed(const gfx::Animation* animation) { 1255821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) view_->SchedulePaint(); 1265821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 1275821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1285821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} // namespace views 129