Examples with IStandaloneElementTag org.thymeleaf.model.IStandaloneElementTag used on opensource projects

Example 6 with IStandaloneElementTag

use of org.thymeleaf.model.IStandaloneElementTag in project thymeleaf-tests by thymeleaf.

the class ReplaceWithProcessableXMLDeclarationProcessor method doProcess.

@Override
protected void doProcess(final ITemplateContext context, final IXMLDeclaration xmlDeclaration, final IXMLDeclarationStructureHandler structureHandler) {
    final IModelFactory modelFactory = context.getModelFactory();
    final IStandaloneElementTag tag = modelFactory.createStandaloneElementTag("replaced", "th:text", "one", false, true);
    final IModel model = modelFactory.createModel(tag);
    structureHandler.replaceWith(model, true);
}

Example 7 with IStandaloneElementTag

use of org.thymeleaf.model.IStandaloneElementTag in project thymeleaf-tests by thymeleaf.

the class ModelAttributeTagProcessor method doProcess.

@Override
protected void doProcess(final ITemplateContext context, final IModel model, final AttributeName attributeName, final String attributeValue, final IElementModelStructureHandler structureHandler) {
    final IModelFactory modelFactory = context.getModelFactory();
    final IProcessableElementTag firstEvent = (IProcessableElementTag) model.get(0);
    final Map<String, String> attributes = firstEvent.getAttributeMap();
    final ITemplateEvent lastEvent = model.get(model.size() - 1);
    if (firstEvent == lastEvent) {
        final IStandaloneElementTag newFirstEvent = modelFactory.createStandaloneElementTag("ctx", attributes, AttributeValueQuotes.DOUBLE, false, false);
        model.replace(0, newFirstEvent);
    } else {
        final IOpenElementTag newFirstEvent = modelFactory.createOpenElementTag("ctx", attributes, AttributeValueQuotes.DOUBLE, false);
        final ICloseElementTag newLastEvent = modelFactory.createCloseElementTag("ctx", false, false);
        model.replace(0, newFirstEvent);
        model.replace(model.size() - 1, newLastEvent);
    }
}

Example 8 with IStandaloneElementTag

use of org.thymeleaf.model.IStandaloneElementTag in project thymeleaf by thymeleaf.

the class ProcessorTemplateHandler method handleStandaloneElement.

@Override
public void handleStandaloneElement(final IStandaloneElementTag istandaloneElementTag) {
    /*
         * If processing is stopped, we should queue this for later handling
         * In theory, given the origin of events (parser or cache) should get stopped immediately, this should
         * only happen if a pre-processor is producing additional events.
         */
    if (this.throttleEngine && this.flowController.stopProcessing) {
        queueEvent(istandaloneElementTag);
        return;
    }
    /*
         * CHECK WHETHER WE ARE GATHERING AN ELEMENT's MODEL
         */
    if (!this.modelController.shouldProcessStandaloneElement(istandaloneElementTag)) {
        return;
    }
    /*
         * CAST TO ENGINE-SPECIFIC IMPLEMENTATION, which will ease the handling of the structure during processing
         */
    StandaloneElementTag standaloneElementTag = StandaloneElementTag.asEngineStandaloneElementTag(istandaloneElementTag);
    /*
         * OBTAIN THE CURRENT SYNTHETIC MODEL (if any). This is needed in case this event was previously being handled,
         * then a gathering process started (as a consequence of the execution of one of its processors), and then
         * once the model was gathered the process started again by handling the first event, which was the one
         * suspended. By obtaining the current gathering model here we can reinitialize all the handling variables and
         * flags to their original state before being suspended.
         */
    final IGatheringModelProcessable currentGatheringModel = obtainCurrentGatheringModel();
    /*
         * If we are resuming an execution after suspending it, we want to retire the register of the element tag
         * that was added by the controller. The reason we want this is that the current tag was already registered
         * by the controller when the execution was suspended, and we don't want it duplicated (nor altered).
         */
    if (currentGatheringModel != null && this.engineContext != null) {
        this.engineContext.setElementTag(null);
    }
    /*
         * FAIL FAST in case this tag has no associated processors and we have no reason to pay attention to it
         * anyway (because of having been suspended).
         */
    if (currentGatheringModel == null && !standaloneElementTag.hasAssociatedProcessors()) {
        this.next.handleStandaloneElement(standaloneElementTag);
        if (!this.throttleEngine || !this.flowController.stopProcessing) {
            if (this.engineContext != null) {
                this.engineContext.decreaseLevel();
            }
        } else {
            queueProcessable(this.decreaseContextLevelProcessable);
        }
        return;
    }
    /*
         * DECLARE THE STATE VARS NEEDED FOR PROCESSOR EXECUTION. If we are executing the first event of a gathered
         * model, we will just re-initialize to the original variables, the ones we had before suspending.
         */
    final ProcessorExecutionVars vars = (currentGatheringModel == null ? new ProcessorExecutionVars() : currentGatheringModel.initializeProcessorExecutionVars());
    /*
         * GET THE STRUCTURE HANDLERS INTO LOCAL VARS
         */
    final ElementTagStructureHandler tagStructureHandler = this.elementTagStructureHandler;
    final ElementModelStructureHandler modelStructureHandler = this.elementModelStructureHandler;
    /*
         * EXECUTE PROCESSORS
         */
    IElementProcessor processor;
    while (!vars.discardEvent && (processor = vars.processorIterator.next(standaloneElementTag)) != null) {
        tagStructureHandler.reset();
        modelStructureHandler.reset();
        if (processor instanceof IElementTagProcessor) {
            final IElementTagProcessor elementProcessor = ((IElementTagProcessor) processor);
            elementProcessor.process(this.context, standaloneElementTag, tagStructureHandler);
            // Apply any context modifications made by the processor (local vars, inlining, etc.)
            tagStructureHandler.applyContextModifications(this.engineContext);
            // Apply any modifications to the tag itself: new/removed/replace attributes, etc. Note this
            // creates a new tag object because tag objects are immutable.
            standaloneElementTag = tagStructureHandler.applyAttributes(this.attributeDefinitions, standaloneElementTag);
            if (tagStructureHandler.iterateElement) {
                // Initialize a gathering model
                this.modelController.startGatheringIteratedModel(standaloneElementTag, vars, tagStructureHandler.iterVariableName, tagStructureHandler.iterStatusVariableName, tagStructureHandler.iteratedObject);
                // Obtain the gathered model (this is a standalone tag, so no additional events needed in iteration)
                final IGatheringModelProcessable gatheredModel = this.modelController.getGatheredModel();
                this.modelController.resetGathering();
                // Process the gathering model, or queue for throttled execution
                if (!this.throttleEngine) {
                    gatheredModel.process();
                } else {
                    queueProcessable(gatheredModel);
                }
                // Complete exit of the handler method: no more processing to do from here
                return;
            } else if (tagStructureHandler.setBodyText) {
                // Reset model, we need it clean
                vars.modelAfter = resetModel(vars.modelAfter, true);
                // Prepare the text node that will be added to the queue (which will be suspended)
                final Text text = new Text(tagStructureHandler.setBodyTextValue);
                vars.modelAfter.add(text);
                // If processable, events will be executed by the ProcessorTemplateHandler. If not, by this.next
                vars.modelAfterProcessable = tagStructureHandler.setBodyTextProcessable;
                // Initialize the gathered model object (open+close equivalent to this standalone tag)
                final GatheringModelProcessable equivalentSyntheticModel = this.modelController.createStandaloneEquivalentModel(standaloneElementTag, vars);
                // Fire the now-equivalent events. Note the handleOpenElement event will take care of the suspended queue
                if (!this.throttleEngine) {
                    equivalentSyntheticModel.process();
                } else {
                    queueProcessable(equivalentSyntheticModel);
                }
                // Complete exit of the handler method: no more processing to do from here
                return;
            } else if (tagStructureHandler.setBodyModel) {
                // Reset model, we need it clean
                vars.modelAfter = resetModel(vars.modelAfter, true);
                // Prepare the queue (that we will suspend)
                vars.modelAfter.addModel(tagStructureHandler.setBodyModelValue);
                // If processable, events will be executed by the ProcessorTemplateHandler. If not, by this.next
                vars.modelAfterProcessable = tagStructureHandler.setBodyModelProcessable;
                // Initialize the gathered model object (open+close equivalent to this standalone tag)
                final GatheringModelProcessable equivalentSyntheticModel = this.modelController.createStandaloneEquivalentModel(standaloneElementTag, vars);
                // Fire the now-equivalent events. Note the handleOpenElement event will take care of the suspended queue
                if (!this.throttleEngine) {
                    equivalentSyntheticModel.process();
                } else {
                    queueProcessable(equivalentSyntheticModel);
                }
                // Complete exit of the handler method: no more processing to do from here
                return;
            } else if (tagStructureHandler.insertBeforeModel) {
                // Reset BEFORE model, we need it clean
                vars.modelBefore = resetModel(vars.modelBefore, true);
                // Add model to be passed to this.next BEFORE delegating the event. Note this cannot be processable.
                vars.modelBefore.addModel(tagStructureHandler.insertBeforeModelValue);
            } else if (tagStructureHandler.insertImmediatelyAfterModel) {
                // will not be resetting it because we will be inserting our model at the very beginning of it.
                if (vars.modelAfter == null) {
                    vars.modelAfter = resetModel(vars.modelAfter, true);
                }
                // If processable, events will be executed by the ProcessorTemplateHandler. If not, by this.next
                vars.modelAfterProcessable = tagStructureHandler.insertImmediatelyAfterModelProcessable;
                // Insert the new model
                vars.modelAfter.insertModel(0, tagStructureHandler.insertImmediatelyAfterModelValue);
            } else if (tagStructureHandler.replaceWithText) {
                // Reset model, we need it clean
                vars.modelAfter = resetModel(vars.modelAfter, true);
                // If processable, events will be executed by the ProcessorTemplateHandler. If not, by this.next
                vars.modelAfterProcessable = tagStructureHandler.replaceWithTextProcessable;
                // Create the new replacement Text event and add it to the model
                vars.modelAfter.add(new Text(tagStructureHandler.replaceWithTextValue));
                // This tag, the standalone tag itself, will be replaced, so it has to be removed
                vars.discardEvent = true;
            } else if (tagStructureHandler.replaceWithModel) {
                // Reset model, we need it clean
                vars.modelAfter = resetModel(vars.modelAfter, true);
                // If processable, events will be executed by the ProcessorTemplateHandler. If not, by this.next
                vars.modelAfterProcessable = tagStructureHandler.replaceWithModelProcessable;
                // Add the new replacement model
                vars.modelAfter.addModel(tagStructureHandler.replaceWithModelValue);
                // This tag, the standalone tag itself, will be replaced, so it has to be removed
                vars.discardEvent = true;
            } else if (tagStructureHandler.removeElement) {
                // Reset model, but only if it already exists
                vars.modelAfter = resetModel(vars.modelAfter, false);
                // We are removing the element (the standalone tag), so no further processing will be allowed
                vars.discardEvent = true;
            } else if (tagStructureHandler.removeTags) {
                // No modifications to the queue - it's just the tag that will be removed, not its possible contents
                vars.discardEvent = true;
            }
        // --------------
        // No way to process 'removeBody' or 'removeAllButFirstChild' on a standalone tag
        // --------------
        } else if (processor instanceof IElementModelProcessor) {
            if (!vars.processorIterator.lastWasRepeated()) {
                if ((vars.modelBefore != null && vars.modelBefore.size() > 0) || (vars.modelAfter != null && vars.modelAfter.size() > 0)) {
                    throw new TemplateProcessingException("Cannot execute model processor " + processor.getClass().getName() + " as the body " + "of the target element has already been modified by a previously executed processor " + "on the same tag. Model processors cannot execute on already-modified bodies as these " + "might contain unprocessable events (e.g. as a result of a 'th:text' or similar)", standaloneElementTag.getTemplateName(), standaloneElementTag.getLine(), standaloneElementTag.getCol());
                }
                // Set the processor to be executed again, because this time we will just set the "model gathering" mechanism
                vars.processorIterator.setLastToBeRepeated(standaloneElementTag);
                // Initialize the gathering model, and close it quickly because this is a standalone tag so there
                // is only one event to be gathered.
                this.modelController.startGatheringDelayedModel(standaloneElementTag, vars);
                final IGatheringModelProcessable newModel = this.modelController.getGatheredModel();
                this.modelController.resetGathering();
                // Process the new gathering model (no need to wait for a "close" event, as this is a standalone)
                if (!this.throttleEngine) {
                    newModel.process();
                } else {
                    queueProcessable(newModel);
                }
                // Nothing else to be done by this handler... let's just queue the rest of the events in this element
                return;
            }
            /*
                 * This is not the first time we try to execute this processor, which means the model gathering
                 * process has already taken place.
                 */
            // Create the actual Model instance (a clone) that will be passed to the processor to execute on
            final Model gatheredModel = currentGatheringModel.getInnerModel();
            final Model processedModel = new Model(gatheredModel);
            // Execute the processor on the just-created Model
            ((IElementModelProcessor) processor).process(this.context, processedModel, modelStructureHandler);
            // Apply any context modifications made by the processor (local vars, inlining, etc.)
            modelStructureHandler.applyContextModifications(this.engineContext);
            // Reset the skipbody flags so that the processed model can be executed in the same conditions as the original
            currentGatheringModel.resetGatheredSkipFlags();
            /*
                 * Before making any changes and queue the new model for execution, check that it actually is
                 * a "new" model (the processor might have been no-op on the tag and changes might have been
                 * only on the local variables, for example.)
                 */
            if (!gatheredModel.sameAs(processedModel)) {
                /*
                     * Now we will do the exact equivalent to what is performed for an Element Tag processor, when this
                     * returns a result of type "replaceWithModel".
                     */
                // Reset model
                vars.modelAfter = resetModel(vars.modelAfter, true);
                // Set the model to be executed, and set it to be processable (that is a MUST in this case)
                vars.modelAfter.addModel(processedModel);
                vars.modelAfterProcessable = true;
                // We will discard this event (the standalone one) because we are going to process the new, modified
                // model instead. Note we do not need to set the body to skip or anything because we know this is a
                // standalone tag.
                vars.discardEvent = true;
            }
        } else {
            throw new IllegalStateException("An element has been found with an associated processor of type " + processor.getClass().getName() + " which is neither a Tag Element Processor nor a Model Element Processor.");
        }
    }
    /*
         * QUEUE MODEL HANDLING (IF WE ARE THROTTLING)
         */
    if (this.throttleEngine && ((vars.modelAfter != null && vars.modelAfter.size() > 0) || (vars.modelBefore != null && vars.modelBefore.size() > 0))) {
        queueProcessable(new StandaloneElementTagModelProcessable(standaloneElementTag, vars, this.engineContext, this.modelController, this.flowController, this, this.next));
        return;
    }
    /*
         * PROCESS THE QUEUE BEFORE DELEGATING, if specified to do so
         */
    if (vars.modelBefore != null) {
        // This is never processable
        vars.modelBefore.process(this.next);
    }
    /*
         * PROCESS THE REST OF THE HANDLER CHAIN
         */
    if (!vars.discardEvent) {
        this.next.handleStandaloneElement(standaloneElementTag);
    }
    /*
         * PROCESS THE QUEUE, launching all the queued events
         */
    if (vars.modelAfter != null) {
        vars.modelAfter.process(vars.modelAfterProcessable ? this : this.next);
    }
    /*
         * DECREASE THE CONTEXT LEVEL once we have executed all the processors (and maybe a body if we added
         * one to the tag converting it into an open tag)
         */
    if (!this.throttleEngine || !this.flowController.stopProcessing) {
        if (this.engineContext != null) {
            this.engineContext.decreaseLevel();
        }
    } else {
        queueProcessable(this.decreaseContextLevelProcessable);
    }
}

Example 9 with IStandaloneElementTag

use of org.thymeleaf.model.IStandaloneElementTag in project thymeleaf-tests by thymeleaf.

the class StandaloneElementTagTest method testXmlStandaloneElementAttrManagement.

@Test
public void testXmlStandaloneElementAttrManagement() {
    IStandaloneElementTag tag;
    tag = computeXmlTag("<input/>");
    Assert.assertEquals("<input/>", tag.toString());
    tag = computeXmlTag("<input type=\"text\"/>");
    Assert.assertEquals("<input type=\"text\"/>", tag.toString());
    tag = computeXmlTag("<input type=\"text\"   value='hello!!!'/>");
    Assert.assertEquals("<input type=\"text\"   value='hello!!!'/>", tag.toString());
    tag.getAttributes().removeAttribute("type");
    Assert.assertEquals("<input value='hello!!!'/>", tag.toString());
    tag.getAttributes().removeAttribute("value");
    Assert.assertEquals("<input/>", tag.toString());
    tag = computeXmlTag("<input type=\"text\"   value='hello!!!'    />");
    Assert.assertEquals("<input type=\"text\"   value='hello!!!'    />", tag.toString());
    tag.getAttributes().removeAttribute(null, "type");
    Assert.assertEquals("<input value='hello!!!'    />", tag.toString());
    tag.getAttributes().removeAttribute(null, "value");
    Assert.assertEquals("<input    />", tag.toString());
    tag = computeXmlTag("<input th:type=\"text\"   th:value='hello!!!'    />");
    Assert.assertEquals("<input th:type=\"text\"   th:value='hello!!!'    />", tag.toString());
    tag.getAttributes().removeAttribute("th", "type");
    Assert.assertEquals("<input th:value='hello!!!'    />", tag.toString());
    tag.getAttributes().removeAttribute("th", "value");
    Assert.assertEquals("<input    />", tag.toString());
    tag = computeXmlTag("<input type=\"text\"   value='hello!!!'    ba='' />");
    Assert.assertEquals("<input type=\"text\"   value='hello!!!'    ba='' />", tag.toString());
    tag.getAttributes().setAttribute("value", "bye! :(");
    Assert.assertEquals("<input type=\"text\"   value='bye! :('    ba='' />", tag.toString());
    tag.getAttributes().setAttribute("type", "one");
    Assert.assertEquals("<input type=\"one\"   value='bye! :('    ba='' />", tag.toString());
    tag.getAttributes().setAttribute("ba", "two");
    Assert.assertEquals("<input type=\"one\"   value='bye! :('    ba='two' />", tag.toString());
    tag.getAttributes().setAttribute("ba", "three", ElementAttributes.ValueQuotes.SINGLE);
    Assert.assertEquals("<input type=\"one\"   value='bye! :('    ba='three' />", tag.toString());
    try {
        tag.getAttributes().setAttribute("ba", "four", ElementAttributes.ValueQuotes.NONE);
        Assert.assertTrue(false);
    } catch (final IllegalArgumentException e) {
        Assert.assertTrue(true);
    }
    try {
        tag.getAttributes().setAttribute("ba", null, ElementAttributes.ValueQuotes.NONE);
        Assert.assertTrue(false);
    } catch (final IllegalArgumentException e) {
        Assert.assertTrue(true);
    }
    try {
        tag.getAttributes().setAttribute("ba", null);
        Assert.assertTrue(false);
    } catch (final IllegalArgumentException e) {
        Assert.assertTrue(true);
    }
    tag.getAttributes().setAttribute("ba", "five");
    Assert.assertEquals("<input type=\"one\"   value='bye! :('    ba='five' />", tag.toString());
    tag.getAttributes().setAttribute("ba", "six");
    Assert.assertEquals("<input type=\"one\"   value='bye! :('    ba='six' />", tag.toString());
    tag = computeXmlTag("<input type=\"text\"   value='hello!!!'    ba='twenty' /><meta id='one' />");
    Assert.assertEquals("<meta id='one' />", tag.toString());
}

Example 10 with IStandaloneElementTag

use of org.thymeleaf.model.IStandaloneElementTag in project thymeleaf-tests by thymeleaf.

the class StandaloneElementTagTest method testHtmlStandaloneElementPropertyManagement.

@Test
public void testHtmlStandaloneElementPropertyManagement() {
    IStandaloneElementTag tag;
    final ElementDefinitions elementDefinitions = TEMPLATE_ENGINE_CONFIGURATION.getElementDefinitions();
    tag = computeHtmlTag("<input>");
    Assert.assertSame(elementDefinitions.forHTMLName("input"), tag.getElementDefinition());
    tag.setMinimized(true);
    Assert.assertEquals("<input/>", tag.toString());
    Assert.assertSame(elementDefinitions.forHTMLName("input"), tag.getElementDefinition());
    tag = computeHtmlTag("<input />");
    Assert.assertSame(elementDefinitions.forHTMLName("input"), tag.getElementDefinition());
    tag.setMinimized(false);
    Assert.assertEquals("<input >", tag.toString());
    Assert.assertSame(elementDefinitions.forHTMLName("input"), tag.getElementDefinition());
}