Examples with BlockRenderState org.loboevolution.html.renderstate.BlockRenderState used on opensource projects

Example 1 with BlockRenderState

use of org.loboevolution.html.renderstate.BlockRenderState in project LoboEvolution by LoboEvolution.

the class RBlock method forceLayout.

/**
 * Lays out the block without checking for prior dimensions.
 */
private RBlockLayoutInfo forceLayout(RenderState renderState, RLayoutInfo info) {
    final int availWidth = info.getAvailWidth();
    final int availHeight = info.getAvailHeight();
    final boolean expandWidth = info.isExpandWidth();
    final boolean expandHeight = info.isExpandHeight();
    final boolean sizeOnly = info.isSizeOnly();
    final FloatingBoundsSource blockFloatBoundsSource = info.getBlockFloatBoundsSource();
    RenderState rs = renderState;
    if (rs == null) {
        rs = new BlockRenderState(null);
    }
    applyStyle(availWidth, availHeight);
    final RBlockViewport bodyLayout = this.bodyLayout;
    final NodeImpl node = (NodeImpl) this.modelNode;
    if (node == null || bodyLayout == null) {
        final Insets insets = getInsetsMarginBorder(false, false);
        return RBlockLayoutInfo.builder().width(insets.left + insets.right).height(insets.bottom + insets.top).hasHScrollBar(false).hasVScrollBar(false).build();
    }
    Insets paddingInsets = (this.paddingInsets == null) ? RBlockViewport.ZERO_INSETS : this.paddingInsets;
    final int paddingTotalWidth = paddingInsets.left + paddingInsets.right;
    final int paddingTotalHeight = paddingInsets.top + paddingInsets.bottom;
    int overflowX = (this.overflowX == RenderState.OVERFLOW_NONE) ? defaultOverflowX : this.overflowX;
    int overflowY = (this.overflowY == RenderState.OVERFLOW_NONE) ? defaultOverflowY : this.overflowY;
    final boolean vauto = overflowY == RenderState.OVERFLOW_AUTO;
    boolean hscroll = overflowX == RenderState.OVERFLOW_SCROLL;
    final boolean hauto = overflowX == RenderState.OVERFLOW_AUTO;
    boolean vscroll = overflowY == RenderState.OVERFLOW_SCROLL;
    Insets insets = getInsetsMarginBorder(hscroll, vscroll);
    int insetsTotalWidth = insets.left + insets.right;
    int insetsTotalHeight = insets.top + insets.bottom;
    int actualAvailWidth = availWidth - paddingTotalWidth - insetsTotalWidth;
    final int actualAvailHeight = availHeight - paddingTotalHeight - insetsTotalHeight;
    final Integer dw = getDeclaredWidth(renderState, actualAvailWidth);
    final Integer dh = getDeclaredHeight(renderState, actualAvailHeight);
    int declaredWidth = dw != null ? dw : -1;
    int declaredHeight = dh != null ? dh : -1;
    clearGUIComponents();
    int tentativeWidth;
    int tentativeHeight;
    if ("border-box".equals(rs.getBoxSizing())) {
        tentativeWidth = declaredWidth == -1 ? availWidth : declaredWidth;
        tentativeHeight = declaredHeight == -1 ? availHeight : declaredHeight;
    } else {
        tentativeWidth = declaredWidth == -1 ? availWidth : declaredWidth + insetsTotalWidth + paddingTotalWidth;
        tentativeHeight = declaredHeight == -1 ? availHeight : declaredHeight + insetsTotalHeight + paddingTotalHeight;
    }
    if (declaredWidth == -1 && !expandWidth && availWidth > insetsTotalWidth + paddingTotalWidth) {
        final RenderThreadState state = RenderThreadState.getState();
        final boolean prevOverrideNoWrap = state.overrideNoWrap;
        if (!prevOverrideNoWrap) {
            state.overrideNoWrap = true;
            try {
                bodyLayout.layout(paddingTotalWidth, paddingTotalHeight, paddingInsets, -1, null, true);
                if (bodyLayout.getWidth() + insetsTotalWidth < tentativeWidth) {
                    tentativeWidth = bodyLayout.getWidth() + insetsTotalWidth;
                    tentativeHeight = bodyLayout.getHeight() + insetsTotalHeight;
                }
            } finally {
                state.overrideNoWrap = false;
            }
        }
    }
    FloatingBounds viewportFloatBounds = null;
    FloatingBounds blockFloatBounds = null;
    if (blockFloatBoundsSource != null) {
        blockFloatBounds = blockFloatBoundsSource.getChildBlockFloatingBounds(tentativeWidth);
        viewportFloatBounds = new ShiftedFloatingBounds(blockFloatBounds, -insets.left, -insets.right, -insets.top);
    }
    int desiredViewportWidth = tentativeWidth - insetsTotalWidth;
    final int desiredViewportHeight = tentativeHeight - insets.top - insets.bottom;
    final int maxY = vauto ? (declaredHeight == -1 ? availHeight : declaredHeight + paddingInsets.top) : -1;
    try {
        bodyLayout.layout(desiredViewportWidth, desiredViewportHeight, paddingInsets, maxY, viewportFloatBounds, sizeOnly);
    } catch (final SizeExceededException see) {
        vscroll = true;
        insets = getInsetsMarginBorder(hscroll, vscroll);
        insetsTotalWidth = insets.left + insets.right;
        actualAvailWidth = availWidth - paddingTotalWidth - insetsTotalWidth;
        Integer newdw = getDeclaredWidth(renderState, actualAvailWidth);
        declaredWidth = newdw == null ? -1 : newdw;
        desiredViewportWidth = tentativeWidth - insetsTotalWidth;
        if (blockFloatBounds != null) {
            viewportFloatBounds = new ShiftedFloatingBounds(blockFloatBounds, -insets.left, -insets.right, -insets.top);
        }
        bodyLayout.layout(desiredViewportWidth, desiredViewportHeight, paddingInsets, -1, viewportFloatBounds, sizeOnly);
    }
    final int bodyWidth = bodyLayout.getWidth();
    final int bodyHeight = bodyLayout.getHeight();
    final int prelimBlockWidth = bodyWidth + insetsTotalWidth;
    int prelimBlockHeight = bodyHeight + insetsTotalHeight;
    if ((vauto || vscroll) && ((prelimBlockHeight - insetsTotalHeight) < bodyLayout.getHeight())) {
        final boolean isHtmlElem = getModelNode() instanceof HTMLHtmlElement;
        if (isHtmlElem) {
            prelimBlockHeight = bodyLayout.getHeight() + insetsTotalHeight;
        } else {
            vscroll = true;
            insets = this.getInsetsMarginBorder(hscroll, vscroll);
            insetsTotalWidth = insets.left + insets.right;
        }
    }
    int adjDeclaredWidth;
    int adjDeclaredHeight;
    if ("border-box".equals(rs.getBoxSizing())) {
        adjDeclaredWidth = declaredWidth;
        adjDeclaredHeight = declaredHeight;
    } else {
        adjDeclaredWidth = declaredWidth == -1 ? -1 : declaredWidth + insets.left + insets.right + paddingInsets.left + paddingInsets.right;
        adjDeclaredHeight = declaredHeight == -1 ? -1 : declaredHeight + insets.top + insets.bottom + paddingInsets.top + paddingInsets.bottom;
    }
    // Adjust insets and other dimensions base on overflow-y=auto.
    if (hauto && (adjDeclaredWidth != -1 && prelimBlockWidth > adjDeclaredWidth || prelimBlockWidth > tentativeWidth)) {
        hscroll = true;
        insets = getInsetsMarginBorder(hscroll, vscroll);
        insetsTotalHeight = insets.top + insets.bottom;
        prelimBlockHeight = bodyHeight + insetsTotalHeight;
    }
    int resultingWidth;
    int resultingHeight;
    if (adjDeclaredWidth == -1) {
        resultingWidth = expandWidth ? Math.max(prelimBlockWidth, tentativeWidth) : prelimBlockWidth;
        if (hscroll && resultingWidth > tentativeWidth) {
            resultingWidth = Math.max(tentativeWidth, SCROLL_BAR_THICKNESS);
        }
    } else {
        resultingWidth = adjDeclaredWidth;
    }
    if (adjDeclaredHeight == -1) {
        resultingHeight = expandHeight ? Math.max(prelimBlockHeight, tentativeHeight) : prelimBlockHeight;
        if (vscroll && resultingHeight > tentativeHeight) {
            resultingHeight = Math.max(tentativeHeight, SCROLL_BAR_THICKNESS);
        }
    } else {
        resultingHeight = adjDeclaredHeight;
    }
    if (!sizeOnly) {
        final int alignmentYPercent = rs.getAlignYPercent();
        final int alignmentXPercent = rs.getAlignXPercent();
        if (alignmentXPercent > 0) {
            final int canvasWidth = Math.max(bodyLayout.getWidth(), resultingWidth - insets.left - insets.right);
            bodyLayout.alignX(alignmentXPercent, canvasWidth, paddingInsets);
        }
        if (alignmentYPercent > 0) {
            final int canvasHeight = Math.max(bodyLayout.getHeight(), resultingHeight - insets.top - insets.bottom);
            bodyLayout.alignY(alignmentYPercent, canvasHeight, paddingInsets);
        }
    }
    if (hscroll || vscroll) {
        if (vscroll) {
            addComponent(scroll.getVScrollBar());
        }
        if (hscroll) {
            addComponent(scroll.getHScrollBar());
        }
        correctViewportOrigin(insets, resultingWidth, resultingHeight);
        this.setWidth(resultingWidth);
        this.setHeight(resultingHeight);
        scroll.resetScrollBars(rs);
    } else {
        bodyLayout.setX(insets.left);
        bodyLayout.setY(insets.top);
    }
    return RBlockLayoutInfo.builder().width(resultingWidth).height(resultingHeight).hasHScrollBar(hscroll).hasVScrollBar(vscroll).build();
}