move a few things away in to-be-integrated/

[myslice.git] / third-party / codemirror-3.15 / addon / display / placeholder.js

diff --git a/third-party/codemirror-3.15/addon/display/placeholder.js b/third-party/codemirror-3.15/addon/display/placeholder.js
deleted file mode 100644 (file)
index 18f9dff..0000000
--- a/third-party/codemirror-3.15/addon/display/placeholder.js
+++ /dev/null
@@ -1,54 +0,0 @@
-(function() {
-  CodeMirror.defineOption("placeholder", "", function(cm, val, old) {
-    var prev = old && old != CodeMirror.Init;
-    if (val && !prev) {
-      cm.on("focus", onFocus);
-      cm.on("blur", onBlur);
-      cm.on("change", onChange);
-      onChange(cm);
-    } else if (!val && prev) {
-      cm.off("focus", onFocus);
-      cm.off("blur", onBlur);
-      cm.off("change", onChange);
-      clearPlaceholder(cm);
-      var wrapper = cm.getWrapperElement();
-      wrapper.className = wrapper.className.replace(" CodeMirror-empty", "");
-    }
-
-    if (val && !cm.hasFocus()) onBlur(cm);
-  });
-
-  function clearPlaceholder(cm) {
-    if (cm.state.placeholder) {
-      cm.state.placeholder.parentNode.removeChild(cm.state.placeholder);
-      cm.state.placeholder = null;
-    }
-  }
-  function setPlaceholder(cm) {
-    clearPlaceholder(cm);
-    var elt = cm.state.placeholder = document.createElement("pre");
-    elt.style.cssText = "height: 0; overflow: visible";
-    elt.className = "CodeMirror-placeholder";
-    elt.appendChild(document.createTextNode(cm.getOption("placeholder")));
-    cm.display.lineSpace.insertBefore(elt, cm.display.lineSpace.firstChild);
-  }
-
-  function onFocus(cm) {
-    clearPlaceholder(cm);
-  }
-  function onBlur(cm) {
-    if (isEmpty(cm)) setPlaceholder(cm);
-  }
-  function onChange(cm) {
-    var wrapper = cm.getWrapperElement(), empty = isEmpty(cm);
-    wrapper.className = wrapper.className.replace(" CodeMirror-empty", "") + (empty ? " CodeMirror-empty" : "");
-
-    if (cm.hasFocus()) return;
-    if (empty) setPlaceholder(cm);
-    else clearPlaceholder(cm);
-  }
-
-  function isEmpty(cm) {
-    return (cm.lineCount() === 1) && (cm.getLine(0) === "");
-  }
-})();