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added beforeselect event

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This commit is contained in:
Peter Schojer 2008-09-04 13:02:54 +00:00
parent 3e3ff2766c
commit 9778ea9f5e
6 changed files with 60 additions and 8 deletions
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12
WebWidgets/ExtJS/include/Poco/WebWidgets/ExtJS/ComboBoxCellRenderer.h
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@ -60,6 +60,7 @@ class ExtJS_API ComboBoxCellRenderer: public Poco::WebWidgets::Renderer
{
public:
static const std::string EV_SELECTED;
static const std::string EV_BEFORESELECT;
static const std::string EV_AFTERLOAD;
ComboBoxCellRenderer();
@ -76,13 +77,18 @@ public:
private:
static void onLoad(void* pSender, Poco::Net::HTTPServerResponse* &pResponse);
static void serialize(const ComboBoxCell* pCell, std::ostream& out);
static Poco::WebWidgets::JSDelegate createSelectedServerCallback(const ComboBox* pCombo);
/// Adds a server callback for the selected event. The method signature for select is
/// select : ( Ext.form.ComboBox combo, Ext.data.Record record, Number index )
static Poco::WebWidgets::JSDelegate createBeforeSelectServerCallback(const ComboBox* pCombo);
/// Adds a server callback for the beforeselect event. The method signature is
/// beforeselect : ( Ext.form.ComboBox combo, Ext.data.Record record, Number index )
/// return false to forbid it
static Poco::WebWidgets::JSDelegate createAfterLoadServerCallback(const ComboBox* pCombo);
/// Create a server callback for afterLoad of ComboBox list
};

22
WebWidgets/ExtJS/src/ComboBoxCellRenderer.cpp
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@ -53,6 +53,7 @@ namespace ExtJS {
const std::string ComboBoxCellRenderer::EV_SELECTED("select");
const std::string ComboBoxCellRenderer::EV_BEFORESELECT("beforeselect");
const std::string ComboBoxCellRenderer::EV_AFTERLOAD("load");
@ -77,6 +78,18 @@ JSDelegate ComboBoxCellRenderer::createSelectedServerCallback(const ComboBox* pC
}
Poco::WebWidgets::JSDelegate ComboBoxCellRenderer::createBeforeSelectServerCallback(const ComboBox* pCombo)
{
// beforeselect : ( Ext.form.ComboBox combo, Ext.data.Record record, Number index )
// return false to forbid it
static const std::string signature("function(combo,rec,idx)");
std::map<std::string, std::string> addParams;
addParams.insert(std::make_pair(ComboBoxCell::FIELD_VAL, "+rec.get('d')"));
addParams.insert(std::make_pair(RequestHandler::KEY_EVID, ComboBoxCell::EV_BEFORESELECT));
return Utility::createServerCallback(signature, addParams, pCombo->id(), pCombo->beforeSelect.getOnSuccess(), pCombo->beforeSelect.getOnFailure());
}
Poco::WebWidgets::JSDelegate ComboBoxCellRenderer::createAfterLoadServerCallback(const ComboBox* pCombo)
{
poco_check_ptr (pCombo);
@ -118,11 +131,16 @@ void ComboBoxCellRenderer::renderHead(const Renderable* pRenderable, const Rende
std::string tooltip (pCell->getToolTip());
if (pComboOwner && (pComboOwner->selected.hasJavaScriptCode() || !tooltip.empty()))
if (pComboOwner && (pComboOwner->selected.hasJavaScriptCode() || !tooltip.empty() || pComboOwner->beforeSelect.hasJavaScriptCode()))
{
ostr << ",listeners:{";
bool written = Utility::writeJSEvent(ostr, EV_SELECTED, pComboOwner->selected, &ComboBoxCellRenderer::createSelectedServerCallback, pComboOwner);
if (pComboOwner->beforeSelect.hasJavaScriptCode())
{
if (written)
ostr << ",";
written = Utility::writeJSEvent(ostr, EV_BEFORESELECT, pComboOwner->beforeSelect, &ComboBoxCellRenderer::createBeforeSelectServerCallback, pComboOwner);
}
if (!tooltip.empty())
{
if (written)

7
WebWidgets/include/Poco/WebWidgets/ComboBox.h
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@ -63,7 +63,9 @@ public:
typedef Event<ComboBox> ComboBoxEvent;
typedef ComboBoxCell::OldNewValue SelectEvent; /// a pair of old, then new value
JavaScriptEvent<const SelectEvent> selected; /// thrown whenever a new element is selected
JavaScriptEvent<const Poco::Any> beforeSelect; /// thrown before a new element is selected
JavaScriptEvent<const SelectEvent> selected; /// thrown after a new element is selected
JavaScriptEvent<ComboBoxEvent> afterLoad; // thrown after data was loaded
@ -130,6 +132,9 @@ protected:
void fireSelected(const void* pSender, const SelectEvent& oldNewPair);
/// Fires the selected event.
void fireBeforeSelect(const void* pSender, const Poco::Any& newValue);
/// Fires the beforeSelect event.
void fireAfterLoad(void* pSender);
/// Fires the afterLoad event.

7
WebWidgets/include/Poco/WebWidgets/ComboBoxCell.h
View File

@ -60,12 +60,15 @@ public:
static const std::string EV_SELECTED;
static const std::string EV_BEFORESELECT;
static const std::string EV_LOAD;
static const std::string EV_AFTERLOAD;
static const std::string FIELD_VAL;
FIFOEvent<const OldNewValue> selected; /// thrown whenever a new element is selected
Delegate afterLoad;
FIFOEvent<const Poco::Any> beforeSelect; /// thrown before a new element is selected
FIFOEvent<const OldNewValue> selected; /// thrown after a new element is selected
Delegate afterLoad;
FIFOEvent<Poco::Net::HTTPServerResponse*> beforeLoad; /// thrown whenever a load is requested

10
WebWidgets/src/ComboBox.cpp
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@ -48,6 +48,7 @@ ComboBox::ComboBox(const std::string& name, const std::type_info& type):
{
ComboBoxCell::Ptr pCell = cell<ComboBoxCell>();
pCell->selected += Poco::delegate(this, &ComboBox::fireSelected);
pCell->beforeSelect += Poco::delegate(this, &ComboBox::fireBeforeSelect);
pCell->afterLoad = delegate(*this, &ComboBox::fireAfterLoad);
}
@ -57,6 +58,7 @@ ComboBox::ComboBox(const std::type_info& type):
{
ComboBoxCell::Ptr pCell = cell<ComboBoxCell>();
pCell->selected += Poco::delegate(this, &ComboBox::fireSelected);
pCell->beforeSelect += Poco::delegate(this, &ComboBox::fireBeforeSelect);
pCell->afterLoad = delegate(*this, &ComboBox::fireAfterLoad);
}
@ -66,6 +68,7 @@ ComboBox::ComboBox(const std::string& name):
{
ComboBoxCell::Ptr pCell = cell<ComboBoxCell>();
pCell->selected += Poco::delegate(this, &ComboBox::fireSelected);
pCell->beforeSelect += Poco::delegate(this, &ComboBox::fireBeforeSelect);
pCell->afterLoad = delegate(*this, &ComboBox::fireAfterLoad);
}
@ -75,6 +78,7 @@ ComboBox::ComboBox():
{
ComboBoxCell::Ptr pCell = cell<ComboBoxCell>();
pCell->selected += Poco::delegate(this, &ComboBox::fireSelected);
pCell->beforeSelect += Poco::delegate(this, &ComboBox::fireBeforeSelect);
pCell->afterLoad = delegate(*this, &ComboBox::fireAfterLoad);
}
@ -90,6 +94,12 @@ void ComboBox::fireSelected(const void* pSender, const ComboBoxCell::OldNewValue
}
void ComboBox::fireBeforeSelect(const void* pSender, const Poco::Any& newValue)
{
beforeSelect(this, newValue);
}
void ComboBox::fireAfterLoad(void* pSender)
{
ComboBoxEvent sel(this);

10
WebWidgets/src/ComboBoxCell.cpp
View File

@ -46,6 +46,7 @@ const std::string ComboBoxCell::FIELD_VAL("val");
const std::string ComboBoxCell::EV_LOAD("doLoad");
const std::string ComboBoxCell::EV_AFTERLOAD("afterLoad");
const std::string ComboBoxCell::EV_SELECTED("sel");
const std::string ComboBoxCell::EV_BEFORESELECT("befSel");
ComboBoxCell::ComboBoxCell(View* pOwner):
@ -105,6 +106,13 @@ void ComboBoxCell::handleAjaxRequest(const Poco::Net::NameValueCollection& args,
response.send();
}
else if (ev == EV_BEFORESELECT)
{
Formatter::Ptr pForm(getFormatter());
Poco::Any newVal = pForm->parse(args[FIELD_VAL]);
beforeSelect(this, newVal);
response.send();
}
else if (ev == EV_AFTERLOAD)
{
afterLoad(this);
@ -115,6 +123,8 @@ void ComboBoxCell::handleAjaxRequest(const Poco::Net::NameValueCollection& args,
void ComboBoxCell::setSelected(const Any& elem)
{
//don't throw beforeSelect here: it's a web only event
//(otherwise we get two beforeSelect events)
Poco::Any old;
if (hasSelected())
old = getSelected();