michael@0: 
michael@0: /*
michael@0:  * Copyright 2011 Google Inc.
michael@0:  *
michael@0:  * Use of this source code is governed by a BSD-style license that can be
michael@0:  * found in the LICENSE file.
michael@0:  */
michael@0: #include "SkWidgetViews.h"
michael@0: #include "SkAnimator.h"
michael@0: #include "SkCanvas.h"
michael@0: #include "SkPaint.h"
michael@0: #include "SkStream.h"
michael@0: #include "SkSystemEventTypes.h"
michael@0: 
michael@0: /*
michael@0: I have moved this to SkWidgetViews.h
michael@0: enum SkinEnum {
michael@0:     kButton_SkinEnum,
michael@0:     kProgress_SkinEnum,
michael@0:     kScroll_SkinEnum,
michael@0:     kStaticText_SkinEnum,
michael@0: 
michael@0:     kSkinEnumCount
michael@0: };
michael@0: */
michael@0: 
michael@0: const char* get_skin_enum_path(SkinEnum se)
michael@0: {
michael@0:     SkASSERT((unsigned)se < kSkinEnumCount);
michael@0: 
michael@0:     static const char* gSkinPaths[] = {
michael@0:             "common/default/default/skins/border3.xml",
michael@0:             "common/default/default/skins/button.xml",
michael@0:             "common/default/default/skins/progressBar.xml",
michael@0:             "common/default/default/skins/scrollBar.xml",
michael@0:             "common/default/default/skins/statictextpaint.xml"
michael@0:     };
michael@0: 
michael@0:     return gSkinPaths[se];
michael@0: }
michael@0: 
michael@0: void init_skin_anim(const char path[], SkAnimator* anim) {
michael@0:     SkASSERT(path && anim);
michael@0: 
michael@0:     SkAutoTUnref<SkStream> stream(SkStream::NewFromFile(path));
michael@0:     if (!stream.get()) {
michael@0:         SkDEBUGF(("init_skin_anim: loading skin failed <%s>\n", path));
michael@0:         sk_throw();
michael@0:     }
michael@0: 
michael@0:     if (!anim->decodeStream(stream)) {
michael@0:         SkDEBUGF(("init_skin_anim: decoding skin failed <%s>\n", path));
michael@0:         sk_throw();
michael@0:     }
michael@0: }
michael@0: 
michael@0: void init_skin_anim(SkinEnum se, SkAnimator* anim)
michael@0: {
michael@0:     init_skin_anim(get_skin_enum_path(se), anim);
michael@0: }
michael@0: 
michael@0: void init_skin_paint(SkinEnum se, SkPaint* paint)
michael@0: {
michael@0:     SkASSERT(paint);
michael@0: 
michael@0:     SkAnimator    anim;
michael@0:     SkCanvas    canvas;
michael@0: 
michael@0:     init_skin_anim(se, &anim);
michael@0:     anim.draw(&canvas, paint, 0);
michael@0: }
michael@0: 
michael@0: void inflate_paint(const SkDOM& dom, const SkDOM::Node* node, SkPaint* paint)
michael@0: {
michael@0:     SkASSERT(paint);
michael@0: 
michael@0:     SkAnimator    anim;
michael@0:     SkCanvas    canvas;
michael@0: 
michael@0:     if (!anim.decodeDOM(dom, node))
michael@0:     {
michael@0:         SkDEBUGF(("inflate_paint: decoding dom failed\n"));
michael@0:         SkDEBUGCODE(dom.dump(node);)
michael@0:         sk_throw();
michael@0:     }
michael@0:     anim.draw(&canvas, paint, 0);
michael@0: }
michael@0: 
michael@0: ////////////////////////////////////////////////////////////////////////////////////////
michael@0: 
michael@0: SkWidgetView::SkWidgetView() : SkView(SkView::kFocusable_Mask | SkView::kEnabled_Mask)
michael@0: {
michael@0: }
michael@0: 
michael@0: const char* SkWidgetView::getLabel() const
michael@0: {
michael@0:     return fLabel.c_str();
michael@0: }
michael@0: 
michael@0: void SkWidgetView::getLabel(SkString* label) const
michael@0: {
michael@0:     if (label)
michael@0:         *label = fLabel;
michael@0: }
michael@0: 
michael@0: void SkWidgetView::setLabel(const char label[])
michael@0: {
michael@0:     this->setLabel(label, label ? strlen(label) : 0);
michael@0: }
michael@0: 
michael@0: void SkWidgetView::setLabel(const char label[], size_t len)
michael@0: {
michael@0:     if ((label == NULL && fLabel.size() != 0) || !fLabel.equals(label, len))
michael@0:     {
michael@0:         SkString    tmp(label, len);
michael@0: 
michael@0:         this->onLabelChange(fLabel.c_str(), tmp.c_str());
michael@0:         fLabel.swap(tmp);
michael@0:     }
michael@0: }
michael@0: 
michael@0: void SkWidgetView::setLabel(const SkString& label)
michael@0: {
michael@0:     if (fLabel != label)
michael@0:     {
michael@0:         this->onLabelChange(fLabel.c_str(), label.c_str());
michael@0:         fLabel = label;
michael@0:     }
michael@0: }
michael@0: 
michael@0: bool SkWidgetView::postWidgetEvent()
michael@0: {
michael@0:     if (!fEvent.isType(""))
michael@0:     {
michael@0:         SkEvent    evt(fEvent);    // make a copy since onPrepareWidgetEvent may edit the event
michael@0: 
michael@0:         if (this->onPrepareWidgetEvent(&evt))
michael@0:         {
michael@0:             SkDEBUGCODE(evt.dump("SkWidgetView::postWidgetEvent");)
michael@0: 
michael@0:             this->postToListeners(evt);    // wonder if this should return true if there are > 0 listeners...
michael@0:             return true;
michael@0:         }
michael@0:     }
michael@0:     return false;
michael@0: }
michael@0: 
michael@0: /*virtual*/ void SkWidgetView::onInflate(const SkDOM& dom, const SkDOM::Node* node)
michael@0: {
michael@0:     this->INHERITED::onInflate(dom, node);
michael@0: 
michael@0:     const char* label = dom.findAttr(node, "label");
michael@0:     if (label)
michael@0:         this->setLabel(label);
michael@0: 
michael@0:     if ((node = dom.getFirstChild(node, "event")) != NULL)
michael@0:         fEvent.inflate(dom, node);
michael@0: }
michael@0: 
michael@0: /*virtual*/ void SkWidgetView::onLabelChange(const char oldLabel[], const char newLabel[])
michael@0: {
michael@0:     this->inval(NULL);
michael@0: }
michael@0: 
michael@0: static const char gWidgetEventSinkIDSlotName[] = "sk-widget-sinkid-slot";
michael@0: 
michael@0: /*virtual*/ bool SkWidgetView::onPrepareWidgetEvent(SkEvent* evt)
michael@0: {
michael@0:     evt->setS32(gWidgetEventSinkIDSlotName, this->getSinkID());
michael@0:     return true;
michael@0: }
michael@0: 
michael@0: SkEventSinkID SkWidgetView::GetWidgetEventSinkID(const SkEvent& evt)
michael@0: {
michael@0:     int32_t    sinkID;
michael@0: 
michael@0:     return evt.findS32(gWidgetEventSinkIDSlotName, &sinkID) ? (SkEventSinkID)sinkID : 0;
michael@0: }
michael@0: 
michael@0: ///////////////////////////////////////////////////////////////////////////////////////////////////
michael@0: 
michael@0: /*virtual*/ bool SkButtonView::onEvent(const SkEvent& evt)
michael@0: {
michael@0:     if (evt.isType(SK_EventType_Key) && evt.getFast32() == kOK_SkKey)
michael@0:     {
michael@0:         this->postWidgetEvent();
michael@0:         return true;
michael@0:     }
michael@0:     return this->INHERITED::onEvent(evt);
michael@0: }
michael@0: 
michael@0: ///////////////////////////////////////////////////////////////////////////////////////////////////
michael@0: 
michael@0: SkCheckButtonView::SkCheckButtonView() : fCheckState(kOff_CheckState)
michael@0: {
michael@0: }
michael@0: 
michael@0: void SkCheckButtonView::setCheckState(CheckState state)
michael@0: {
michael@0:     SkASSERT((unsigned)state <= kUnknown_CheckState);
michael@0: 
michael@0:     if (fCheckState != state)
michael@0:     {
michael@0:         this->onCheckStateChange(this->getCheckState(), state);
michael@0:         fCheckState = SkToU8(state);
michael@0:     }
michael@0: }
michael@0: 
michael@0: /*virtual*/ void SkCheckButtonView::onCheckStateChange(CheckState oldState, CheckState newState)
michael@0: {
michael@0:     this->inval(NULL);
michael@0: }
michael@0: 
michael@0: /*virtual*/ void SkCheckButtonView::onInflate(const SkDOM& dom, const SkDOM::Node* node)
michael@0: {
michael@0:     this->INHERITED::onInflate(dom, node);
michael@0: 
michael@0:     int index = dom.findList(node, "check-state", "off,on,unknown");
michael@0:     if (index >= 0)
michael@0:         this->setCheckState((CheckState)index);
michael@0: }
michael@0: 
michael@0: static const char gCheckStateSlotName[] = "sk-checkbutton-check-slot";
michael@0: 
michael@0: /*virtual*/ bool SkCheckButtonView::onPrepareWidgetEvent(SkEvent* evt)
michael@0: {
michael@0:     // could check if we're "disabled", and return false...
michael@0: 
michael@0:     evt->setS32(gCheckStateSlotName, this->getCheckState());
michael@0:     return true;
michael@0: }
michael@0: 
michael@0: bool SkCheckButtonView::GetWidgetEventCheckState(const SkEvent& evt, CheckState* state)
michael@0: {
michael@0:     int32_t    state32;
michael@0: 
michael@0:     if (evt.findS32(gCheckStateSlotName, &state32))
michael@0:     {
michael@0:         if (state)
michael@0:             *state = (CheckState)state32;
michael@0:         return true;
michael@0:     }
michael@0:     return false;
michael@0: }
michael@0: 
michael@0: ///////////////////////////////////////////////////////////////////////////////////////////////////
michael@0: ///////////////////////////////////////////////////////////////////////////////////////////////////
michael@0: ///////////////////////////////////////////////////////////////////////////////////////////////////
michael@0: 
michael@0: #include "SkTime.h"
michael@0: #include <stdio.h>
michael@0: 
michael@0: class SkAnimButtonView : public SkButtonView {
michael@0: public:
michael@0:     SkAnimButtonView()
michael@0:     {
michael@0:         fAnim.setHostEventSink(this);
michael@0:         init_skin_anim(kButton_SkinEnum, &fAnim);
michael@0:     }
michael@0: 
michael@0: protected:
michael@0:     virtual void onLabelChange(const char oldLabel[], const char newLabel[])
michael@0:     {
michael@0:         this->INHERITED::onLabelChange(oldLabel, newLabel);
michael@0: 
michael@0:         SkEvent evt("user");
michael@0:         evt.setString("id", "setLabel");
michael@0:         evt.setString("LABEL", newLabel);
michael@0:         fAnim.doUserEvent(evt);
michael@0:     }
michael@0: 
michael@0:     virtual void onFocusChange(bool gainFocus)
michael@0:     {
michael@0:         this->INHERITED::onFocusChange(gainFocus);
michael@0: 
michael@0:         SkEvent evt("user");
michael@0:         evt.setString("id", "setFocus");
michael@0:         evt.setS32("FOCUS", gainFocus);
michael@0:         fAnim.doUserEvent(evt);
michael@0:     }
michael@0: 
michael@0:     virtual void onSizeChange()
michael@0:     {
michael@0:         this->INHERITED::onSizeChange();
michael@0: 
michael@0:         SkEvent evt("user");
michael@0:         evt.setString("id", "setDim");
michael@0:         evt.setScalar("dimX", this->width());
michael@0:         evt.setScalar("dimY", this->height());
michael@0:         fAnim.doUserEvent(evt);
michael@0:     }
michael@0: 
michael@0:     virtual void onDraw(SkCanvas* canvas)
michael@0:     {
michael@0:         SkPaint                        paint;
michael@0:         SkAnimator::DifferenceType    diff = fAnim.draw(canvas, &paint, SkTime::GetMSecs());
michael@0: 
michael@0:         if (diff == SkAnimator::kDifferent)
michael@0:             this->inval(NULL);
michael@0:         else if (diff == SkAnimator::kPartiallyDifferent)
michael@0:         {
michael@0:             SkRect    bounds;
michael@0:             fAnim.getInvalBounds(&bounds);
michael@0:             this->inval(&bounds);
michael@0:         }
michael@0:     }
michael@0: 
michael@0:     virtual bool onEvent(const SkEvent& evt)
michael@0:     {
michael@0:         if (evt.isType(SK_EventType_Inval))
michael@0:         {
michael@0:             this->inval(NULL);
michael@0:             return true;
michael@0:         }
michael@0:         if (evt.isType("recommendDim"))
michael@0:         {
michael@0:             SkScalar    height;
michael@0: 
michael@0:             if (evt.findScalar("y", &height))
michael@0:                 this->setHeight(height);
michael@0:             return true;
michael@0:         }
michael@0:         return this->INHERITED::onEvent(evt);
michael@0:     }
michael@0: 
michael@0:     virtual bool onPrepareWidgetEvent(SkEvent* evt)
michael@0:     {
michael@0:         if (this->INHERITED::onPrepareWidgetEvent(evt))
michael@0:         {
michael@0:             SkEvent    e("user");
michael@0:             e.setString("id", "handlePress");
michael@0:             (void)fAnim.doUserEvent(e);
michael@0:             return true;
michael@0:         }
michael@0:         return false;
michael@0:     }
michael@0: 
michael@0: private:
michael@0:     SkAnimator    fAnim;
michael@0: 
michael@0:     typedef SkButtonView INHERITED;
michael@0: };
michael@0: 
michael@0: ////////////////////////////////////////////////////////////////////////////////////////////
michael@0: ////////////////////////////////////////////////////////////////////////////////////////////
michael@0: 
michael@0: SkView* SkWidgetFactory(const char name[])
michael@0: {
michael@0:     if (name == NULL)
michael@0:         return NULL;
michael@0: 
michael@0:     // must be in the same order as the SkSkinWidgetEnum is declared
michael@0:     static const char* gNames[] = {
michael@0:         "sk-border",
michael@0:         "sk-button",
michael@0:         "sk-image",
michael@0:         "sk-list",
michael@0:         "sk-progress",
michael@0:         "sk-scroll",
michael@0:         "sk-text"
michael@0: 
michael@0:     };
michael@0: 
michael@0:     for (size_t i = 0; i < SK_ARRAY_COUNT(gNames); i++)
michael@0:         if (!strcmp(gNames[i], name))
michael@0:             return SkWidgetFactory((SkWidgetEnum)i);
michael@0: 
michael@0:     return NULL;
michael@0: }
michael@0: 
michael@0: #include "SkImageView.h"
michael@0: #include "SkProgressBarView.h"
michael@0: #include "SkScrollBarView.h"
michael@0: #include "SkBorderView.h"
michael@0: 
michael@0: SkView* SkWidgetFactory(SkWidgetEnum sw)
michael@0: {
michael@0:     switch (sw) {
michael@0:     case kBorder_WidgetEnum:
michael@0:         return new SkBorderView;
michael@0:     case kButton_WidgetEnum:
michael@0:         return new SkAnimButtonView;
michael@0:     case kImage_WidgetEnum:
michael@0:         return new SkImageView;
michael@0:     case kList_WidgetEnum:
michael@0:         return new SkListView;
michael@0:     case kProgress_WidgetEnum:
michael@0:         return new SkProgressBarView;
michael@0:     case kScroll_WidgetEnum:
michael@0:         return new SkScrollBarView;
michael@0:     case kText_WidgetEnum:
michael@0:         return new SkStaticTextView;
michael@0:     default:
michael@0:         SkDEBUGFAIL("unknown enum passed to SkWidgetFactory");
michael@0:         break;
michael@0:     }
michael@0:     return NULL;
michael@0: }